The total number of students participating in a school club or sport is 105.
How to calculate the number of students?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers. On the other hand, a fraction appears in the numerator or the denominator of a complex fraction.
Given that three out of 5 students at Maria's school participate in a school club or sport and there are 175 students at the school.
In this situation, the number of people that participate will be:
= Fraction utilized × Total number of students
= 3/5 × 175
= 105
The number of people is 105.
Learn more about fractions on:
brainly.com/question/78672
#SPJ1
determine the type ii error if the null hypothesis, h0, is: the percentage of college students that will graduate with debt is no more than 65%.and, the alternative hypothesis, ha, is: the percentage of college students that will graduate with debt is more than 65%.
We know that in statistics, the Type II error happens when the null hypothesis is false but fails to get rejected.
Type II error in this scenario will be when the researcher claim 65% of college students will graduate with debt is false but fails to be rejected.
A type II error is a statistical term used within the context of hypothesis testing that describes the error that occurs when one fails to reject a null hypothesis that is actually false. A type II error produces a false negative, also known as an error of omission.
For example, a test for a disease may report a negative result when the patient is infected. This is a type II error because we accept the conclusion of the test as negative, even though it is incorrect.
A Type II error can be contrasted with a type I error is the rejection of a true null hypothesis, whereas a type II error describes the error that occurs when one fails to reject a null hypothesis that is actually false. The error rejects the alternative hypothesis, even though it does not occur due to chance.
Given : The null hypothesis, , is: researchers claim that 65% of college students will graduate with debt.
Then , Type II error in this scenario will be when the researcher claim 65% of college students will graduate with debt is false but fails to be rejected.
Learn more about Type II error:
https://brainly.com/question/15737126
#SPJ4
assume that you have a labeled data set . explain how can you use only k-mean clusterign to build a classification model fot this dataset
K-means clustering is a type of unsupervised learning which uses unlabeled data, or data without clearly defined categories or groupings.
Explain the term K-means clustering?Data is divided into k clusters using K-means clustering, with the goal of making the clusters closer together and the individual data points more dispersed.
The distance between two points determines how similar they are.The distance can be measured in a variety of ways. One of the most often used distance metrics is the distance measure (minkowski distance for p=2). The calculation of the Euclidean separation distance in a two-dimensional space is shown in the image below.The square of a difference between the points' x and y dimensions is used to calculate it.K-means clustering seeks to maximize distances across clusters while minimizing distances within each cluster.K-means clustering is a sort of unsupervised learning which uses unlabeled data, or data without clearly defined categories or groupings.
Thus this algorithm's goal is to identify groups among the data, where K stands for the set of organizations.
To know more about the K-means clustering, here
https://brainly.com/question/15016224
#SPJ4
The complete question is-
Assume that you have a labeled dataset. Explain how you can use only K-means clustering to build a classification model for this dataset. What can go wrong?
Select all the equations that have g = 6
the solution.
Og+2=10
0g-1=10
09-2=4
58+ g = 60
44 - g = 38
eacher: ""the first triangle is an isosceles triangle. the second triangle is an isosceles triangle. the third triangle is not an isosceles triangle. based on your observations alone what should be the definition of an isosceles triangle?""what does this question illustrate about the geometry teacher’s questioning techniques?
We have demonstrated the definition of an isosceles triangle.
What is an isosceles triangle?
An isosceles triangle is a triangle with at least two equal-length sides in geometry. It is sometimes specified as having exactly two equal-length sides, and sometimes as having at least two equal-length sides, with the latter version including the equilateral triangle as a special case.
The isosceles triangle has both two equal sides and two equal angles. The name derives from the Greek iso (same) and Skelos (leg). A triangle with all sides equal is called an equilateral triangle, and a triangle with no sides equal is called a scalene triangle.
The given diagram shows an isosceles triangle.
Hence, we have demonstrated the definition of an isosceles triangle.
To learn more about an isosceles triangle, visit:
https://brainly.com/question/1475130
#SPJ4
What is this answer? Please do it for me fast!
After a dilation by a scale factor of (3/2) the vertices are A'(- 3, - 3), B'(6, - 3) and
(3/2, 3/2).
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
A triangle has coordinates A(- 2, - 2), B(4, - 2) and C(1, 1).
After a dilation by a scale factor of (3/2) it will be A'(- 3, - 3), B'(6, - 3) and
(3/2, 3/2).
learn more about transformations here :
https://brainly.com/question/11709244
#SPJ1
Expand and simplify if possible (√2+5)(1+√2)
Answer:
7 + 6[tex]\sqrt{2}[/tex]
Step-by-step explanation:
note that [tex]\sqrt{a}[/tex] × [tex]\sqrt{a}[/tex] = a
([tex]\sqrt{2}[/tex] + 5)(1 + [tex]\sqrt{2}[/tex])
each term in the second factor is multiplied by each term in the first factor, that is
[tex]\sqrt{2}[/tex](1 + [tex]\sqrt{2}[/tex]) + 5(1 +[tex]\sqrt{2}[/tex]) ← distribute parenthesis
= [tex]\sqrt{2}[/tex] + 2 + 5 + 5[tex]\sqrt{2}[/tex] ← collect like terms
= 7 + 6[tex]\sqrt{2}[/tex]
A number a is more than 6. An inequality that represents this word sentence is..
Answer:
x>
Step-by-step explanation:
x>
A number a:
a
is more than 6
< 6
Solution:a < 6I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!
find an explicit description of nul a by listing vectors that span the null space. a question content area bottom part 1 a spanning set for nul a is
By using the concept of null space of a matrix, it can be calculated that
Nullspace of A = [tex]\{ \begin{bmatrix} 3 \\ 1 \\0 \\ 0\\0 \end{bmatrix} , \begin{bmatrix} 3 \\ 0 \\-4 \\ 1\\0 \end{bmatrix}\}[/tex]
What is Nullspace of a matrix?
Nullspace of a matrix A is the solution of the equation AX= 0 where 0 is the zero matrix
[tex]\begin{bmatrix} 1 & -3 & 0 & -3 & 0 \\ 0 & 0 & 1 & 4 & 0 \\0 & 0 & 0 & 0 & -1 \end{bmatrix} \begin{bmatrix} x \\ y \\z \\w \\t \end{bmatrix}[/tex]
We need to find Ax = 0
[tex]\begin{bmatrix} 1 & -3 & 0 & -3 & 0 \\ 0 & 0 & 1 & 4 & 0 \\0 & 0 & 0 & 0 & -1 \end{bmatrix} \begin{bmatrix} x \\ y \\z \\w \\t \end{bmatrix} = \begin{bmatrix} 0 \\ 0 \\0 \end{bmatrix}[/tex]
x - 3y - 3w = 0
x = 3y + 3w
z + 4w = 0
z = -4w
-t = 0
t = 0
[tex]\begin{bmatrix} x \\ y \\z \\w \\t \end{bmatrix} = \begin{bmatrix} 3y + 3w\\ y \\-4w \\ w\\0 \end{bmatrix}\\\\y \begin{bmatrix} 3 \\ 1 \\0 \\ 0\\0 \end{bmatrix} + w \begin{bmatrix} 3 \\ 0 \\-4 \\ 1\\0 \end{bmatrix}[/tex]
Nullspace of A = [tex]\{ \begin{bmatrix} 3 \\ 1 \\0 \\ 0\\0 \end{bmatrix} , \begin{bmatrix} 3 \\ 0 \\-4 \\ 1\\0 \end{bmatrix}\}[/tex]
To learn more about nullspace of a matrix, refer to the link-
https://brainly.com/question/17484555
#SPJ4
Complete Question
The complete question has been attached
3. Se tiene un auto pesado y un auto ligero, Ex-
plica qué ocurrirá en los siguientes casos:
a. Si los dos carros aceleran igualmente en el
arranque, ¿cuál gana?
b. Si ambos desaceleran igual, ¿cuál se detie-
ne en menos tiempo?
Answer:
a. El auto pesado ganará, ya que debido a su mayor masa tendrá una mayor fuerza de arrastre.
b. El auto ligero se detendrá en menos tiempo, debido a que su masa es menor, lo cual significa que tendrá una menor resistencia al movimiento.
Step-by-step explanation:
In a school, 105 students are sixth graders. If 35% of the students in the school are sixth graders, how many students are there in the school?
The total number of schools such that 35% of it is 105 will be 300.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
Suppose the total number of students is x.
35% of x = 105
(35/100)x = 105
x = 105(100/35)
x = 300 students
Hence "The total number of schools such that 35% of it is 105 will be 300".
For more about the percentage,
brainly.com/question/13450942
#SPJ1
Assume that women's weights are normally distributed with a mean given by μ=143 lb and a standard deviation given by σ =29 lb.
b) If 4 women are randomly selected, find the probability that they have a mean weight above 176
c) If 57 women are randomly selected, find the probability that they have a mean weight above 176
Answer:
b) P(mean weight > 176) = 1 - P(mean weight ≤ 176) = 1 - 0.9332 = 0.0668
c) P(mean weight > 176) = 1 - P(mean weight ≤ 176) = 1 - 0.9997 = 0.0003
if two erminette chickens were crossed, what is the probability that: a. they would have a black chick?
Probability of two black Erminette chickens crossed is equal to 1/4.
As given in the question,
Erminette chickens are basically a chicken with a gene of black and white feathers.
There are two groups of chicken black feather chicken and white feather chicken.
All possible outcomes when Erminette chicken crossed each other are:
= { BB , BW, WB, WW}
Total number of outcomes are = 4
Favourable outcomes are ={ BB }
Number of favourable outcomes = 1
Probability of two black Erminette chickens crossed each other
= ( Favourable outcomes) / ( Total number of outcomes )
= 1 / 4
Therefore, probability of two black Erminette chickens crossed each other with the given condition is equal to 1/ 4.
Learn more about probability here
brainly.com/question/11234923
#SPJ4
let g be a random graph generated using the gn,p model. a clique of k vertices in a graph is a subset of k vertices such that all (k 2 )edges lie in the graph. for what value of p as a function of n, is the expected number of cliques in g equal to 1?
At p = Θ(1/√n) the expected number of cliques in G will be going to be equal to 1.
What is meant by Probability?The likelihood that a random event will occur is defined by probability. There are several real-life circumstances in which we must forecast the result of an occurrence. We might be certain or uncertain about the outcome of an event. In these circumstances, we state that there is a likelihood that this occurrence will occur or not. Generally speaking, probability has many useful uses in games, business (to make forecasts based on probability), and this emerging branch of artificial intelligence.
By simply dividing the favorable number of possibilities by the entire number of potential outcomes, the probability of an occurrence may be computed using the probability formula. Probability values range from 0 to 1, with a value of 1 being the most likely.
How to solve?
Fix any S-vertex subgroup that contains less than 5. Given that S includes (5, 2)=10 edges, the probability of S being a clique in G is p^10. Given that S has (n, 5) options, the predicted number of 5 cliques in G is (n, 5)p^10 due to linearity of expectation. The result of solving for (n, 5)p10 = 1 is^ p10 = (1/n^5).
To learn more about Probability, visit:
https://brainly.com/question/11234923
#SPJ4
of the 2,598,960 different five-card poker hands possible from a deck of 52 playing cards, how many would contain 2 black cards and 3 red cards?
The number of ways to contain 2 black card and 3 red cards are 84,500.
What is card deck?
A piece of specially made card stock, heavy paper, thin cardboard, plastic-coated paper, cotton-paper blend, or thin plastic that has been imprinted with distinctive motifs is what is known as a playing card. Each card frequently has a finish on the front and reverse to make handling simpler.
There are 26 red card and 26 black card in a 52 card deck.
We have to find the number of ways contain 2 black card and 3 red cards.
Initial black card: 26 options
Secondly black card: 25 options
First caution: 26 options
Second warning: 25 options
Three red cards: 24 options
A total of,
26 x 25 x 26 x 25 x 24 = 10,140,000.
But since all orders are equal, we divide by the number of orders for a five card hand:
5 x 4 x 3 x 2 x 1 = 5! = 120
So,
10,40,000 / 120 = 84,500.
Hence, the number of ways to contain 2 black card and 3 red cards are 84,500.
To know more about card deck, click on the link
https://brainly.com/question/5858025
#SPJ4
jacked biked 28 miles in 3.5 hours
(question one )whats the unit rate per hour?
(question two) how far can he bike in 9 hours
(1). The unit rate of per hour is 8 hours.
(2). He bikes 72 miles in 9 hours.
What do you mean by unit rate?
An item's unit rate is its price for one of it. This is expressed as a ratio with a one as the denominator. For instance, if you covered 70 yards in 10 seconds, you covered 7 yards on average every second. Seven yards in one second and 70 yards in ten seconds are both ratios, but only one of them is a unit rate.
According to data in the given question,
We have :
Distance travelled in 3.5 hours = 28 miles
Now, firstly we need to find unit rate per hour,
Distance travelled in 1 hours = 28/3.5 miles
= 8 miles
So, the unit rate of per hour is 8 hours.
Then, we will find the how far can he bike in 9 hours,
Distance travelled in 9 hours = 9*8 miles
= 72 miles
Therefore, he bikes 72 miles in 9 hours.
To learn more about unit rate, visit:
https://brainly.com/question/11258929?referrer=searchResults
#SPJ1
A right triangle has a leg of length 13 yards and a hypotenuse of
length 42 yards. Find the length of the other leg. Provide an answer
accurate to the nearest tenth.
Answer:
39.9 yards
Step-by-step explanation:
Pythagorean theorem is a^2+b^2=c^2
Where a and b are the legs and c is the hypotheneus
We set this so it will be equal to a leg
a^2+b^2=c^2
-b^2. -b^2
a^2=c^2-b^2
42^2-13^2=a^2
1764-169=a^2
1595=a^2
√ √
39.9=a
Hopes this helps please mark brainliest
please help.. just how many times am i gonna have to post the same question over and over again to get an actual answer
What is the Slope-Intercept Formula if the line IS Proportional. (Slope-intercept form is y =
mx + b)
Type a response
Answer:
y = mx
Step-by-step explanation:
You want to know the slope-intercept formula for a line that represents a proportion.
ProportionA proportion is a linear function that includes the point (0, 0). The y-intercept is zero, so the slope-intercept equation is ...
y = mx
Find the asymptote(s) of the graph of the function. Select all that apply.
The asymptotes of the graph of the function are given as follows:
x = -2.x = -1.y = 0.What are the asymptotes of the function?The function has two types of asymptotes, which are given as follows:
Vertical asymptotes.Horizontal asymptotes.The vertical asymptotes are the values of x for which the function is not defined, that is, empty spaces on the graph of the function, hence they are given as follows:
x = -2, as the function goes to infinity at both sides of x = -2.x = -1, as the function is not defined at x = -1 due to the open circle.At x = 1, there is a closed circle, hence the function is defined and it is not a vertical asymptote.
The horizontal asymptote is the limit of the function as it goes to infinity, as long as this limit is different of infinity.
The limits are given as follows:
x goes to negative infinity: y = 0 -> horizontal asymptote.x goes to positive infinity: negative infinity -> not an asymptote.More can be learned about the asymptotes of a function at https://brainly.com/question/1851758
#SPJ1
Evaluate the given integral by making an appropriate change of variables, where R is the region in the first quadrant bounded by the ellipse 100x2 + 49y2 = 1
On solving tthe question, we got by double integration [tex]\int\limits^0_1 \int\limits^1_2{100x^2+49y^2} \, dx dy = x(\frac{100x^2 + 147y^2}{3} )[/tex]
What is double integration?A function in two variables over a region in R2, or the real number plane, is referred to in mathematics as a double integral. It is possible to write the double integral of a function of two variables, such as f(x, y), over a rectangular region as follows: ∬ R f ( x , y ) d A = ∬ R f ( x , y ) d x d y.
g[tex]\int\limits^0_1 \int\limits^1_2{100x^2+49y^2} \, dx dy \\ At first,\\ \int\limits^{} \,100x^2 dx = 100\int\limits^ {} \,x^2 dx \\ \int\limits^ {} \,x^2 dx = \frac{x^3}{3} \\[/tex]
[tex]the result - \frac{100x^3}{3}\\ now,\\\int\limits \, 49y^2dx = 49xy^2\\\\result - \frac{100x^3}{3} + 49xy^2\\\\On simplyfing-\\[/tex]
[tex]x(\frac{100x^2 + 147y^2}{3} )[/tex]
To know more about double integration visit:
https://brainly.com/question/2289273
#SPJ4
What are the zeros of the function f(x) = x2 + 5x + 5 written in simplest radical form? quadratic formula: x = startfraction negative b plus or minus startroot b squared minus 4 a c endroot over 2 a endfraction.
Answer:
Below
Step-by-step explanation:
a = 1 b = 5 c = 5
Using these values in the Quadratic Formula given results in zeroes of
x = -5/2 ± sqrt (5) / 2
Let ????=−5y????+5x????. Use the tangential vector form of Green's Theorem to compute the circulation integral ∫????????⋅???????? where C is the positively oriented circle x2+y2=25
The value of the required integral is 50π where C is the positively oriented circle x2+y2=25
We are given a vector F = -yi + xj. A vector is a quantity with magnitude and direction that is commonly represented by a directed line segment, with length representing magnitude and orientation in space representing direction. We need to use the tangential vector form of Green's Theorem to compute the circulation integral ∫CF⋅dr where C is the positively oriented circle x² + y² = 25
Let the value of the integral be represented by the variable "I".
I = ∫∫[(/x)(x) - (/y)(-y)]dA
I = ∫∫[(1 - (-1)]dA
I = ∫∫2dA
I = 2∫∫dA
I = 2×(Area of the circle)
I = 2*(πr²)
I = 2*(π*25)
I = 50π
Hence, the value of the required integral is 50π.
To learn more about integrals, visit :
brainly.com/question/18125359
#SPJ4
25 POINTS! PLEASE HELP QUICKLY.
Simplify the expression.
six tenths squared minus 18 plus the quantity negative 3 divided by the absolute value of 5.6 minus 7.1 end quantity times 4.19
A: −25.18
B: −26.02
C: −8.42
D: −9.26
Answer:
D
Step-by-step explanation:
Exam test completed. Your welcome
Bittersweet bakery normally sells out wers
of loaves of bread quickly. The graph
shows the loaves of bread that the
bakery has left. Label each segment
of the graph with letters A through
E, beginning from the left. Record the
time interval for each segment. Then,
describe how fast the number of
loaves changes.
Answer:
Step-by-step explanation:
Location & Hours
Map
109 W 4th St
Ogallala, NE 69153
Mon
Closed
Tue
7:00 AM - 3:00 PM
Wed
7:00 AM - 3:00 PM
Thu
7:00 AM - 3:00 PM
Closed now
Fri
7:00 AM - 3:00 PM
Sat
7:00 AM - 1:00 PM
Sun
Closed
Edit business info
Amenities and More
Accepts Credit Cards
Ask the Community
Ask a question
Yelp users haven’t asked any questions yet about Bittersweet Bakery.
Recommended Reviews
Your trust is our top concern, so businesses can't pay to alter or remove their reviews. Learn more.
Username
Location
00
Start your review of Bittersweet Bakery.
Overall rating
8 reviews
5 stars
4 stars
3 stars
2 stars
1 star
Yelp SortFilter by rating
Search reviews
Search reviews
K B.
Fort Collins, CO
0223
6/18/2015
wonderful cinnamon rolls and sticky buns, so glad we stopped on our way thru town.
It's a small little place in residential area, not far from a main road, definitely worth stopping by for a delicious treat!
Kaitlin J.
Cedar Grove, Panama City, FL
016
8/27/2020
2 photos
Erin is so friendly and truly a master of her trade! We ordered a cake shaped like a suitcase (complete with fondant flight attendant) as a surprise for our mom's retirement party. It turned out even better than we could have ever expected with the best hand-painted intricate details. She really went above and beyond, and the carrot cake was absolutely delicious!! We are all still so impressed. We just had such a great experience from start to finish--Erin is so friendly and easy to work with. She made our vision come to life and at an incredibly reasonable price. I can't recommend her bakery enough!
Answer: 5.5
Step-by-step explanation:
in a nondirectional significance test of a correlation, the null hypothesis states that the population correlation is zero. true false
The given statement is True.
What is the Null Hypothesis?
The null hypothesis in inferential statistics is that two possibilities are equal. The underlying assumption is that the observed difference is just the result of chance. It is possible to determine the probability that the null hypothesis is correct using statistical tests.
True. In a non-directional significance test of a correlation, the null hypothesis states that the population correlation is zero.
Hence, The given statement is True.
To know more about Null Hypothesis visit,
https://brainly.com/question/13776238
#SPJ4
if the video is shot at 190 frames per second, how many wing beats does the dragonfly perform per second?
After solving, 41.67 Hz wing beats the dragonfly performs per second.
In the given question, if the video is shot at 190 frames per second, then we have to find how many wing beats the dragonfly performs per second.
From the given question,
Frames per one wing beat = 6 frames
Video shot at = 250 frames per second
We firstly find the time period
So, Time period (T) = 6/250
T= 0.024 s
Snce we have to find how many wing beats the dragonfly performs per second.
Per second number of wing beats = 1/T
Per second number of wing beats = 1/0.024
Per second number of wing beats = 41.67 Hz
Hence, 41.67 Hz wing beats the dragonfly performs per second.
To learn more about time period link is here
brainly.com/question/13788009?
#SPJ4
The right question is;
A frame by frame analysis of a slowmotion video shows that a hovering dragonfly takes 6 frames to complete one wing beat.
If the video is shot at 190 frames per second, how many wing beats does the dragonfly perform per second?
Which ordered pair would make this set a function when it replaces (x, y)?
{(0, 1), (2, 6), (1, 7), (5, 7), (x, y)}
ANSWER CHOICES
(2, 4)
(5, 9)
(1, 6)
(4, 8)
Hence, the ordered pair which replace [tex](x,y)[/tex] is [tex](4,8)[/tex].
What is the function?
Functions are often defined by a formula that describes a combination of arithmetic operations and previously defined functions; such a formula allows computing the value of the function from the value of any element of the domain.
Here given function is
[tex]{(0, 1), (2, 6), (1, 7), (5, 7), (x, y)}[/tex]
So, the value which replace [tex](x,y)[/tex] is [tex](4,8)[/tex], because for the function every element have a single image.
Hence, the ordered pair which replace [tex](x,y)[/tex] is [tex](4,8)[/tex].
To know more about the function
https://brainly.com/question/10500042
#SPJ1
a store owner currently sells bags of peanuts that cost $2.2 per pound and bags of almonds that cost $9.1 per pound. the owner wishes to make a 49 pound bag of a mixture of peanuts and almonds that costs $6.85 per pound. how many pounds of peanuts and almonds does the owner need?
To make a 49 pound bag of a mixture of peanuts and almonds that costs $6.85 per pound, the owner needs 15.98 pounds of peanuts and 33.02 pounds of almonds.
An algebraic expression is the combination of numbers and variables in expressing and solving a particular mathematical question. An equation is the equality of expressions.
Let x = pounds of peanuts in the mixture
y = pounds of almonds in the mixture
The owner wished to make a total of 49 pounds of mixture of peanuts ang almonds. Hence,
x + y = 49
x = 49 - y (equation 1)
Bags of peanuts cost $2.2 per pound and bags of almonds cost $9.1 per pound, and the mixture should cost $6.85 per pound. Hence,
2.2x + 9.1y = 6.85(49)
2.2x + 9.1y = 335.65
Substitute equation 1 and solve for y.
2.2x + 9.1y = 335.65
2.2(49 - y) + 9.1y = 335.65
107.8 - 2.2y + 9.1y = 335.65
6.9y = 227.85
y = 33.02
pounds of almonds in the mixture = 33.02
Using equation 1, solve for x.
x = 49 - y
x = 49 - 33.02
x = 15.98
pounds of peanuts in the mixture = 15.98
Learn more about algebraic expression and equation here: brainly.com/question/3927786
#SPJ4
Complete the statement by filling in the blank. When constructing a confidence interval, if the level of confidence increases the margin of error will and the confidence interval will be A larger sample size will improve the accuracy of the confidence interval, therefore margin of error will and the confidence interval will be A) Decrease, wider. Increase, narrower B) Decrease, narrower. Increase, wider C) Increase, wider. Decrease, narrower. D) Increase, narrower. Decrease, wider.
For the given statement option C increase, wider and decrease , narrower is correct.
What is confidence interval?
A confidence interval is computed at a designated confidence level; the 95% confidence level is most common, but other levels, such as 90% or 99%, are sometimes used.
When constructing a confidence interval, if the level of confidence increases, the margin of error must Increase and the confidence interval will be Wider.
Hence Increase; wider is the correct answer.
To learn more about the confidence interval check the given link
https://brainly.com/question/17212516
#SPJ4
the volume of an expanding sphere is increasing at a rate of 12 cubic feet per second. when the volume of the sphere is 36 pi cubic feet, how fast, in square feet per second, is the surface area increasing?
Surface are increasing at the rate of 8 square feet per second.
What is a sphere?
A sphere is a geometrical object that resembles a two-dimensional circle in three dimensions. In three-dimensional space, a sphere is a collection of points that are all located at the same r-distance from a single point. The radius of the sphere is equal to r, and the provided point is its centre.
Volume(V) = [tex]4\pi r^3[/tex]
[tex]\frac{dV}{dt} =\frac{4\pi }{3} \times3r^2\times\frac{dr}{dt} =4\pi r^2.\frac{dr}{dt} \\\\\boxed{\frac{dr}{dt} =\frac{1}{4\pi r^2} (\frac{dV}{dt} )}[/tex]
[tex]V=36\pi \\\\\frac{4}{3} \pi r^3=36\pi \\\\r^3=\frac{108}{4} =27\\\\\boxed{r=3}\\\\\boxed{\frac{dV}{dt} =12}[/tex]
Surface area(S) = [tex]4\pi r^2[/tex]
[tex]\frac{dS}{dr} =8\pi r\times\frac{dr}{dt} \\\\\frac{dS}{dt} =\frac{8\pi r}{4\pi r^2} \times\frac{dr}{dt}\\\\ \frac{dS}{dt}=\frac{2}{r} \times \frac{dV}{dt} =\frac{2}{3} \times12=8\\\\\boxed{\frac{dS}{dt} =8}[/tex]
Hence, the surface area increasing at the rate of 8 square feet per second.
Learn more about sphere link below
https://brainly.com/question/22807400
#SPJ4