Answer:
b carbon dioxide yan nag answer
The data in this question will be utilized for the next three questions. The number of pets a group of students have are given below.Solute deviation?
Question
The data in this question will be utilized for the next three questions. The number of pets a group of students has, are given below.
Number of pets: 0-2 2-4 4-6 6-8 8-10 10-12 12-14
Number of students: 1 2 1 5 6 2 3
Calculate
(1) Mean (2) Sample Variance (3) Sample Standard Deviation
Answer:
[tex](1)[/tex] [tex]\bar x = 8.1[/tex]
[tex](2)[/tex] [tex]\sigma^2 = 6.341[/tex]
[tex](3)[/tex] [tex]\sigma = 2.518[/tex]
Step-by-step explanation:
Given
The above data
First, we calculate the class midpoint (x)
Pets: [tex]0-2[/tex] [tex]2-4[/tex] [tex]4-6[/tex] [tex]6-8[/tex] [tex]8-10[/tex] [tex]10-12[/tex] [tex]12-14[/tex]
x 1 3 5 7 9 11 13
f: 1 2 1 5 6 2 3
The class midpoint (x) is calculated by the average of each group.
For pets: 0 - 2.
[tex]x = \frac{0 + 2}{2}= \frac{2}{2} = 1[/tex]
The same is done for other groups.
Solving (a): Mean
[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]
This gives:
[tex]\bar x = \frac{1 * 1 + 3 * 2 + 5 * 1 + 7 * 5 + 9 * 6 + 11 * 2 + 13 * 3}{1 + 2 + 1 + 5 + 6 + 2 + 3}[/tex]
[tex]\bar x = \frac{162}{20}[/tex]
[tex]\bar x = 8.1[/tex]
Solving (b): Sample Variance
This is calculated as:
[tex]\sigma^2 = \frac{\sum(x_i - \bar x)^2}{\sum f - 1}[/tex]
So:
[tex]\sigma^2 = \frac{(1 - 8.1)^2+(3 - 8.1)^2+(5 - 8.1)^2+(7 - 8.1)^2+(9 - 8.1)^2+(11 - 8.1)^2+(13 - 8.1)^2}{20 - 1}[/tex]
[tex]\sigma^2 = \frac{120.47}{19}[/tex]
[tex]\sigma^2 = 6.341[/tex]
Solving (c): The sample standard deviation
This is calculated as:
[tex]\sigma = \sqrt{\sigma^2[/tex]
[tex]\sigma = \sqrt{6.341[/tex]
[tex]\sigma = 2.518[/tex]
What is the length of the diagonal from vertex J to vertex L in the quadrilateral below? A. √113 B. 11 units C. √103 D. 3 √33
Answer:
the answer is B.
Step-by-step explanation:
PLEASE Help ASAP!!!!!!!!!!!!!!!!!!!!!Tyson has a 50$ gift card to use at a store. He does not have additional money to spend at the store. Tyson will purchase a belt that costs $8 and x number of shirts that cost 15$ each. The function f(x) = 42-15x models the balance on the gift card after Tyson makes the purchases. What is the most appropriate domain of the function?
Answer:
multiply that what my teacher said do
Step-by-step explanation:
Can anybody help me please
Answer:
(2,5)
Step-by-step explanation:
It's the coordinates of the point where the lines cross
Answer:
4=7
Step-by-step explanation:
because you have to look down where the arrows are pointing. I hope you pass whatever your taking!
The ratio of students who took Spanish to students who took German was 15 to 2. If 3000 students took Spanish how many took German?
How does the graph of the function g(x) = 2x - 3 differ from the graph of f(x) = 2X?
Ο Α.
A. It is moved up 3 units.
B.
It is moved down 3 units.
о
C. It is moved right 3 units.
D. It is moved left 3 units.
Answer:
A
Step-by-step explanation:
Ο Α.
A. It is moved up 3 units.
Hi! I was putting up a test on other people with this question and i wanted to see if anyone solves this correctly? PLEASE ANSWER ASAP
Answer:
Assuming the shape is a half-circle, there's two right angles.
Step-by-step explanation:
The angle between the straight segment and the half-circle can be measured by taking a tangent line at the intersection point and it will of course be perpendicular to the straight segment, assuming the segment is the diameter of the circle).
1. How much profit will the company make under each of the following scenarios? (1) sell
10 pairs of jeans at full price for $100; (2) sell 15 pairs of jeans at a discount for $80; or (3) sell
25 pairs of jeans at full price for $100 by spending $500 on promoting the brand. Which
scenario would be most profitable?
(SHOW WORK)
Answer:
1st scenario comes up to 1000 dollars.
2nd scenario 1200 dollars
3rd is 2000 dollars.
This makes the third scenario most profitable.
Step-by-step explanation:
A car is on sale for R 95 850.If a deposit of 9 580 is paid ,how much is still owed on the car ?
Answer:
Step-by-step explanation:
95 850-9 580=86270
R 86 270 is still owed for the car
Hope it helps!
:D
Help ASAP please! ill mark brainliest
Answer:
8 pints 3 people
Step-by-step explanation:
13 x's therefore 13 people participate
8 is the median
Therefore the answer is D
HELPPPPPPPPP PLZZZZ ASAP I WILL MARK Y AS A BRAINLIEST
Answer:
f(- 7) = 17
Step-by-step explanation:
To evaluate f(- 7) substitute x = - 7 into f(x) , that is
f(- 7) = - 2(- 7) + 3 = 14 + 3 = 17
Help please.................
A consumer magazine rates televisions by identifying three levels of price, three levels of repair frequency, four levels of features, and three
levels of picture quality. How many different ratings are possible?
Answer:
10
Step-by-step explanation:
The dimensions of a trapezoid are shown below. Which equation could you use to find the Area of the Trapezoid?
Answer:
See Explanation
Step-by-step explanation:
No trapezoid is attached; so, I will solve on a general note
The area of a trapezoid is:
[tex]Area = \frac{1}{2}(Sum\ of\ parallel\ sides) * Height[/tex]
Using the attached image as a point of reference;
The parallel sides are: AD (6cm) and BD (12cm)
The height is 4cm
So, the area is:
[tex]Area = \frac{1}{2} * (6cm + 12cm) * 4cm[/tex]
[tex]Area = 18cm * 2cm[/tex]
[tex]Area = 36cm^2[/tex]
the expression x10-100 is equivalent to what
Answer:
90
Step-by-step explanation:
I'd be happy if you could help!
Step-by-step explanation:
Circumference=22π
2πr=22π
r=11 in.
Area=121π in.²
Hope it helps you
If quadrilateral JKLM is a rhombus, find m
State the domain for the following relation.{(4, -1), (3, 2), (0, -3), (1, 4)} *
A. {0, 1, 3, 4}
C. {0, 1, 2, 4}
B. {2, 3, 4, 5}
D. {0, 1, 3, 5}
Answer:
A. {0, 1, 3, 4}
Step-by-step explanation:
For a relation with elements (x, y)
The domain is the set of the x-values, that are the input values.
Here we have the relation:
{(4, -1), (3, 2), (0, -3), (1, 4)}
Here we can see that the inputs are:
4, 3, 0, and 1.
Then the domain is:
{4, 3, 0, 1}
Now let's write this in the correct order:
{0, 1, 3, 4}
The domain of the relation is: {0, 1, 3, 4}
Then the correct option is A.
what is 4/3 divided by 1/5
Answer: photo
Step-by-step explanation:
Find sin A, cos A, and tan A as
a fraction in simplest form.
Answer:
sin A = [tex]\frac{15}{17}[/tex]
cos A = [tex]\frac{8}{17}[/tex]
tan A = [tex]1\frac{7}{8}[/tex]
Step-by-step explanation:
sine = [tex]\frac{ooposite}{hypothenuse}[/tex]
sine A = [tex]\frac{15}{17}[/tex]
cosine = [tex]\frac{adjacent}{hypothenuse}[/tex]
cos A = [tex]\frac{8}{17}[/tex]
tan = [tex]\frac{opposite}{adjacent}[/tex]
tan A = [tex]\frac{15}{8} = 1\frac{7}{8}[/tex]
HOW DO U FIND THE ORTHOCENTER???
Answer:
Here i can explain it
Step-by-step explanation:
mark me as brainliest pls 簿絵時ぇ
Any help please anyone??
Answer:
yes
Step-by-step explanation:
pythagorean formula: sqrt(8^2+6^2) = 10
Can someone pls help meee
Answer:
23°
Step-by-step explanation:
straight line=180
82+24+51=157
180-157
1) What is the difference? Complete the equation.
-2 – 8= ?
Answer:
-2 -8 is -10 because we’re subtracting 8 out of -2
brainliest please
Answer:
-10
Step-by-step explanation:
-2 - 8 = -10
When you subtract a negative, the minus sign becomes a plus sign and the negative number becomes positive.
Hope this helps!
2) Evaluate (-9.2) + (7.5) = O -16.7 O 16.7 0 -1.7 1.7
Answer:
C. -1.7
Step-by-step explanation:
6
Evaluate the questions below and select the statistical ones.
A
How many goals are hit in a Soccer match?
B How many goals did Pele hit for Brazil in his career?
C
How many goals were hit in Final game the 2010 Soccer World Cup?
Answer:
Step-by-step explanation:
-17<7n +4 < 46 help asap
Answer:
- 3 < n < 6
Step-by-step explanation:
Given
- 17 < 7n + 4 < 46 ( subtract 4 from each of the intervals )
- 21 < 7n < 42 ( divide each interval by 7 )
- 3 < n < 6
What is the answer to this question?
6x - 6 < 12
Answer:
X<3
Step-by-step explanation:
6x−6+6<12+6
6x<18
Step 2: Divide both sides by 6.
6 divded by 6 = 1
18 divided by 6= 3
therefore the answer would be
X<3
Answer:
x = 1 or less
Step-by-step explanation:
12 - 6 = 6
6x = 6 or less
Divide each side by 6:
6x/6 = 6 or less/6
x = 1 or less
Help on this plzzz:(:((
C, none of the above i believe
Find the measure of the angle indicated in bold
Answer:
x=5
Step-by-step explanation:
hey there
the angles given are corresponding angles meaning that they are congruent
so we set up an equation
23x-5=21x+5
step 1 subtract each side by 5
5-5 cancels out
-5-5=-10
now we have
23x-10=21x
step 2 subtract each side by 23x
21x-23x=-2x
now we have
-2x=-10
step 3 divide each side by 2
-10/-2=5
so we can conclude that
x=5