Answer:
x>-1
Step-by-step explanation:
Answer: x would = -1
Step-by-step explanation:
Hope this helps u! Have a good day! :)
A team of communication scholars conducted a study on the effects of media consumption on aggressive behavior. Forty-eight subjects stayed in a lab for two days. Twenty-four of the subjects are randomly assigned to a condition in which they are not permitted to consume any media that period. The other twenty-four are allowed to consume media whenever they want. At the end of the two days, the subjects finish a task that involves viewing the same tv episode, then identifying as many aggressive behaviors as possible.
For each of the studies, please indicate the following:
1. What is the independent variable? The effects of media consumption
2. Is there more than one IV? Abstinence from Media Consumption and Media Consumption Continued Use
3. Is the IV a continuous or categorical variable? See Above
4. What is the dependent variable? (for correlation, list all variables here and ignore the IV questions)
~ The dependent variable is aggressive behavior
5. Is the DV a continuous or categorical variable ? Continuous ~ measured numerically, has an infinite number of possible values
6. What type of design is being used? Experimental Design
7. What is the appropriate statistical test given the types of variables in this example?
Answer:
A.) The Independent variable is media consumption. ;
B.)
1.) Abstinence from media consumption
11.) Continued consumption of media
C.)
Categorical Variable ;
D.)
Dependent variable is Aggressive behavior ;
E.)
The dependent variable is a continous numerical variable
F.)
Experimental Design.
Step-by-step explanation:
The Independent variable are those variables which causes a change in the measured or dependent variable.
The dependent t variable is the measured variable whose change is triggered by the independent variable.
Categorical Variables are non-numeric labels while the quantitative variables are numeric labels.
Experimental designs usually divides subjects into two or more treatment groups whrebt the effects of applied treatment is observed across the different groups.
NEED ASAP BEFORE MARCH 11
Sumi earns $6.30 in 1/2 hr at her job at the Pet food store. If she works for 60 hours how much will she make in total?
Answer:
$756.00
Step-by-step explanation:
6.30 x 2 = 12.60/hour
12.60 x 60 = $756.00
Find the equation of the line
Use exact numbers
I thank you very very much in advance!
Answer:
y = 3/4x -2
Step-by-step explanation:
Points on the graph: (4, 1) and (0, -2)
Slope:
m=(y2-y1)/(x2-x1)
m= (-2-1)/0-4)
m=(-3)/(-4)
m = 3/4
Point-slope:
y - y1 = m(x - x1)
y - 1 = 3/4(x - 4)
y - 1 = 3/4x - 3
y = 3/4x -2
PLS HELP.I WILL MARK BRAINLIEST!!
Answer:
Answer in attachment photo
A easy question so you get points.
Who won the presidential election
A. Donald Trump
B. Bidden Harris
Answer:
This recent election its Biden.....
lol thx
Follow me!!!!
Answer:
Biden Harris
Step-by-step explanation:
Need help with this one:)
Answer:
1024 sq inches
Step-by-step explanation:
Surface area is the area of all added together.
So: 2(24 * 10 + 10 * 8 + 24 * 8)
2(240 + 80 + 192)
Answer: 1024
7 in.
5 in.
7 in.
5 in.
The perimeter?
Answer:
The perimeter is:
24
Step-by-step explanation:
Perimeter is the outside frame of the area. Add the dimensions together to get your answer. Adding:
7+7= 14
5+5= 10
10+14= 24
:) Hope this helps have a wonderful day!
write a multiplication equation and a division equation that represents the question how many 3/8 are in 5/4
Answer: 3
Step-by-step explanation: double the 5 and the 4(to have the same denominator as the 8)
What is the average weight of the kittens in the shelter?
Please explain!!
Answer:
Step-by-step explanation:
You should add the weights of each kitten and then divide by the number of kittens. Ex. There are 5 kittens weighing 2, 1, 3, 2, and 2. So you would add those to get 10 and divide by the number of kittens which is 5 to get an average of 2.
So in this case you would first add the weight of the kittens
Then divide that by the number of kittens
Then the quotient would be the average of the weight of the kittens in the shelter.
please help!!! thank you!!!
uhm... I’m sorry I don’t actually know the answer to your question but I’m trying to get some points...
(30)Points
Which Statement is true
A,
B.
C.
D.
Answer:
The first answer one is true
Assume that each time a metal detector at an airport signals, there is a 25% chance that the cause is change in the passenger's pocket. During a given hour, 15 passengers are stopped because of a signal from the metal detector. a) Find the probability that at least 3 passengers will have been stopped due to change in their pockets. b) If 15 passengers are stopped by the detector, would it be unusual for none of these to have been stopped due to change in the pocket
Answer:
a) 0.7639 = 76.39% probability that at least 3 passengers will have been stopped due to change in their pockets.
b) 0 is less than 2.5 standard deviations from the mean, so it would not be unusual.
Step-by-step explanation:
For each passenger, there are only two possible outcomes. Either they will have been stopped due to a change in the pocket, or not. Passengers are independent. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
A measure is considered unusual if it is more than 2.5 standard deviations of the mean.
25% chance that the cause is change in the passenger's pocket.
This means that [tex]p = 0.25[/tex]
During a given hour, 15 passengers are stopped because of a signal from the metal detector.
This means that [tex]n = 15[/tex]
a) Find the probability that at least 3 passengers will have been stopped due to change in their pockets.
This is
[tex]P(X \geq 3) = 1 - P(X < 3)[/tex]
In which
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]
So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{15,0}.(0.25)^{0}.(0.75)^{15} = 0.0134[/tex]
[tex]P(X = 1) = C_{15,1}.(0.25)^{1}.(0.75)^{14} = 0.0668[/tex]
[tex]P(X = 2) = C_{15,2}.(0.25)^{2}.(0.75)^{13} = 0.1559[/tex]
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0134 + 0.0668 + 0.1559 = 0.2361[/tex]
[tex]P(X \geq 3) = 1 - P(X < 3) = 1 - 0.2361 = 0.7639[/tex]
0.7639 = 76.39% probability that at least 3 passengers will have been stopped due to change in their pockets.
b) If 15 passengers are stopped by the detector, would it be unusual for none of these to have been stopped due to change in the pocket
First we find the mean and the standard deviation:
[tex]E(X) = np = 15*0.25 = 3.75[/tex]
[tex]\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{15*0.25*0.75} = 1.68[/tex]
3.75 - 2.5*1.68 = -0.45
0 is less than 2.5 standard deviations from the mean, so it would not be unusual.
A public pool wants to rope off a section for children to swim. Three sides will be roped off using the lane line and the fourth will be contained by the pool edge. They have 60 ft of lane line. What is the maximum area they can enclose for children to swim safely?
Answer Choices: 60, 180, 450, 730
USE OPTIMIZATION
PLEASE HELP!
Answer:
180
Step-by-step explanation:
i had that question
What is the probability of getting a vowel if you randomly pick a letter from the English alphabet?
6.5 ÷ ___________ = 0.065
Answer: 6.5 ÷ 100 = 0.065
Lewis is constructing triangle RST.
In the picture, what step is he doing now with his protractor?
A. drawing a line segment from point R to point S
B. checking the angle measure of angle T
C. drawing a line from point R through point T
D. checking the length of side ST
Answer:
B. checking the angle measure of T
Step-by-step explanation:
I used process of elimination, A and C are both incorrect because to draw a line you would have the flat side of the protractor along the edge of the line and this is not shown in the image. D is incorrect because to check the length you would need the have a ruler on the flat side and use that or use a separate ruler.
Option B is correct, checking the angle measure of angle T is the step is he doing now with his protractor
What is Mensuration?Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events.
Given that Lewis is constructing triangle RST.
A triangle is a three-sided polygon that consists of three edges and three vertices.
drawing a line segment from point R to point S is not correct as we can use straight edge to draw the line.
In the same way drawing a line from point R through point T is also not correct.
checking the length of side ST can be done by straight edge.
As we observe Lewis is using a protractor which is used to measure the angle.
Hence, checking the angle measure of angle T is the step is he doing now with his protractor
To learn more on Mensuration click:
https://brainly.in/question/640489
#SPJ3
In AMNO, the measure of O=90°, the measure of N=31°, and OM = 11 feet. Find
the length of MN to the nearest tenth of a foot.
Answer:
21.4
Step-by-step explanation:
just trust me i come from DeltaMAth
Round to the nearest hundredth 94.855
Elly's hot dog emporium is famous for its chili dogs. Some customers order the hot dogs with hot peppers, while many do not care for that added bit of zest. Elly's latest sales indicate that 30% of the customers ordering her chili dogs order it with hot peppers. Suppose 18 customers are selected at random. What is the probability that between two and six people inclusive want hot peppers?
Answer:
here you go
Step-by-step explanation:
18% of the cars in the parking lot are blue.If there are 150 cars in the parking lot,how many cars are blue
What is the area of the rectangle above?
A.
84 square units
B.
19 square units
C.
38 square units
D.
78 square units
so 29 is a monomial also
Answer:
yes, 29 is a monomial
Step-by-step explanation:
help me and thank you
Answer:
15.736
Step-by-step explanation:
Question 3 (5 points)
(02.01 MC)
Which of these is a positive externality of carpooling with friends to work?
оа
Reduced commute time
Ob
Reduced driving focus
Ос
Reduced traffic on the road
Od
Reduced time to socialize
Answer:
reduced traffic on the road
Step-by-step explanation:
just took the test :)
Answer: C) Reduced traffic on the road
Step-by-step explanation: Ive taken this test
Find the area of the figure.
Answer:
180 sq.cm
Step-by-step explanation:
A = 10 x 10 + 16 x 5 x 1/2 x 2
A = 100 + 16 x 5
A = 100 + 80
A = 180 square cm
Hope that helps!
Find the area of the region enclosed by the graphs of these equations. (CALCULUS HELP)
Answer:
[tex]\displaystyle A = \frac{20\sqrt{15}}{3}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityAlgebra I
Terms/CoefficientsGraphingExponential Rule [Root Rewrite]: [tex]\displaystyle \sqrt[n]{x} = x^{\frac{1}{n}}[/tex]Calculus
Derivatives
Derivative Notation
Derivative of a constant is 0
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Area - Integrals
U-Substitution
Integration Rule [Reverse Power Rule]: [tex]\displaystyle \int {x^n} \, dx = \frac{x^{n + 1}}{n + 1} + C[/tex]
Integration Property [Multiplied Constant]: [tex]\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx[/tex]
Integration Property [Addition/Subtraction]: [tex]\displaystyle \int {[f(x) \pm g(x)]} \, dx = \int {f(x)} \, dx \pm \int {g(x)} \, dx[/tex]
Integration Rule [Fundamental Theorem of Calculus 1]: [tex]\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)[/tex]
Area of a Region Formula: [tex]\displaystyle A = \int\limits^b_a {[f(x) - g(x)]} \, dx[/tex]
Step-by-step explanation:
Step 1: Define
F: y = √(15 - x)
G: y = √(15 - 3x)
H: y = 0
Step 2: Find Bounds of Integration
Solve each equation for the x-value for our bounds of integration.
F
Set y = 0: 0 = √(15 - x)[Equality Property] Square both sides: 0 = 15 - x[Subtraction Property of Equality] Isolate x term: -x = -15[Division Property of Equality] Isolate x: x = 15G
Set y = 0: 0 = √(15 - 3x)[Equality Property] Square both sides: 0 = 15 - 3x[Subtraction Property of Equality] Isolate x term: -3x = -15[Division Property of Equality] Isolate x: x = 5This tells us that our bounds of integration for function F is from 0 to 15 and our bounds of integration for function G is 0 to 5.
We see that we need to subtract function G from function F to get our area of the region (See attachment graph for visual).
Step 3: Find Area of Region
Integration Part 1
Rewrite Area of Region Formula [Integration Property - Subtraction]: [tex]\displaystyle A = \int\limits^b_a {f(x)} \, dx - \int\limits^d_c {g(x)} \, dx[/tex][Integral] Substitute in variables and limits [Area of Region Formula]: [tex]\displaystyle A = \int\limits^{15}_0 {\sqrt{15 - x}} \, dx - \int\limits^5_0 {\sqrt{15 - 3x}} \, dx[/tex][Area] [Integral] Rewrite [Exponential Rule - Root Rewrite]: [tex]\displaystyle A = \int\limits^{15}_0 {(15 - x)^{\frac{1}{2}}} \, dx - \int\limits^5_0 {(15 - 3x)^{\frac{1}{2}}} \, dx[/tex]Step 4: Identify Variables
Set variables for u-substitution for both integrals.
Integral 1:
u = 15 - x
du = -dx
Integral 2:
z = 15 - 3x
dz = -3dx
Step 5: Find Area of Region
Integration Part 2
[Area] Rewrite [Integration Property - Multiplied Constant]: [tex]\displaystyle A = -\int\limits^{15}_0 {-(15 - x)^{\frac{1}{2}}} \, dx + \frac{1}{3}\int\limits^5_0 {-3(15 - 3x)^{\frac{1}{2}}} \, dx[/tex][Area] U-Substitution: [tex]\displaystyle A = -\int\limits^0_{15} {u^{\frac{1}{2}}} \, du + \frac{1}{3}\int\limits^0_{15} {z^{\frac{1}{2}}} \, dz[/tex][Area] Reverse Power Rule: [tex]\displaystyle A = -(\frac{2u^{\frac{3}{2}}}{3}) \bigg|\limit^0_{15} + \frac{1}{3}(\frac{2z^{\frac{3}{2}}}{3}) \bigg|\limit^0_{15}[/tex][Area] Evaluate [Integration Rule - FTC 1]: [tex]\displaystyle A = -(-10\sqrt{15}) + \frac{1}{3}(-10\sqrt{15})[/tex][Area] Multiply: [tex]\displaystyle A = 10\sqrt{15} + \frac{-10\sqrt{15}}{3}[/tex][Area] Add: [tex]\displaystyle A = \frac{20\sqrt{15}}{3}[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Area Under the Curve - Area of a Region (Integration)
Book: College Calculus 10e
Pls help me on this due in 10 mins
Answer:
A, E, G
Step-by-step explanation:
Answer:
A
E
G
Step-by-step explanation:
When you divide A, E, and G with the common factor, they all equal 5 : 9
PLEASE HELPPPPPPPP !!!!!!!!!!!!!!1
Answer:
-8.45, 0.95, 8.25
Step-by-step explanation:
The easiest way to do this is to convert the fraction to a decimal, and then compare the values.
8 8/32 is equal to 8 and 1/4. Because 1/4 = 0.25, 8 and 8/32 equals 8.25.
Now, let's compare values.
Numbers we need to compare: -8.45, 0.95, 8.25
The smallest number is -8.45, then 0.95, and lastly, 8.25.
Thus the answer is
-8.45, 0.95, 8.25
868 ÷ 14 = ?? i need help lol
Answer:
**********************868/14=62********************
Step-by-step explanation:
Answer:
+*~868 ÷ 14 = 62~*+
(Hope this helps! Btw, I answered first. Brainliest please! :D)