Which statement describing this experiment is true?
An experiment is proposed to measure the
effectiveness of a brand of sunscreen. Adult volunteers
are randomly assigned to one of two brands of
sunscreen and asked to enjoy a normal day at the
beach. Each volunteer is asked to report back to the
administrators after two hours, at which time both arms
are assessed for sun exposure.
O The volunteers are the explanatory variables.
O. The brands of sunscreen are the response
variables.
O The amount of time in the sun is the response
variable.
O The brands of sunscreen are the explanatory
variables.

Answers

Answer 1

Answer:

d

Step-by-step explanation:

Answer 2

The correct option is C. The amount of time in the sun is the response

variable.

Given, An experiment is conducted to measure the  effectiveness of a brand of sunscreen.

A response variable measures an outcome of a study. An explanatory variable attempts to explain the observed outcomes. The explanatory variable is usually called independent and the response variable is called dependent.

From the above definition it is clear that A response variable is dependent quantity so here in question, option c states that the amount of time in the sun is the response variable which is right because it is totally depend on the brand of sunscreen.

Hence  the correct option is C. The amount of time in the sun is the response

variable.

For more details on response variable follow the link:

https://brainly.com/question/5598457


Related Questions


The relay race is 5 kilometers long. If there are 12 racers
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Answer:

A

Step-by-step explanation:

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Step-by-step explanation:

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I think it is 655.

Step-by-step explanation:

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Answer: 2 and 1/4 cups

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Step-by-step explanation:

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The segment below is dilated by a scale factor of 5 to form N'O'. What is the
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Simplify the expression, sin2x + sinx + cos2x - 1

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Answer:

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[tex] \div [/tex]

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[tex] \div [/tex]

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How would you graph this function?
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Answers

Answers Attached

__________________________________________________________

                                       

please help ASAP ! ! !

Answers

9.4 ——“”-“-“-“-“-“-“-“-“-“-“”—“-“-“-“-“-

Knowing that P = X x i / 100, C = main, e = Rate. Calculate the rate for the formula: A principal of R $ 105,000.00 obtained a percentage of R $ 35,000.00. What is the rate applied?

Answers

Answer:

Interest expressed as a percent of the principal will be referred to as an ... earned on an investment of P at the annual interest rate r for a period of t ... (c) monthly, (​d) weekly, (e) daily, and (f) continuously at a nominal annual ... and substitute x = 3−2y in for x in second equation and find 4y−3(3−2y) = 1.

Step-by-step explanation: sorry if that doesn't help :(

#2Need help ???!!! For an exam. Please don’t send any links !!! Cannot open. Thank you and answer below please and thank!

Answers

The answer should be .227 the third answer!

Hope this help and good luck on the final:)

pls what is 15=2d-0.5?

Answers

Answer:

d=7.75

Have a good day:>

What is the value of x?

Answers

Answer:

[tex]21[/tex]

Step-by-step explanation:

Set up the following proportion and solve for [tex]x[/tex]:

[tex]\frac{27}{45}=\frac{x}{35},\\\\x=\frac{27\cdot 35}{45},\\x=\boxed{21}[/tex]

Solve for x. 3(x+2)=2(2-x)

Answers

Answer: -2/5

1. Multiply out like using distributive property

3x+6 = 4-2x

2. Now just simplify

5x+6=4

5x=-2

x=-2/5

Answer:

Heyaa!!! Im Pinky! Im here to inform you that your answer is....

Step-by-step explanation:

               

                   

                       

1st. We need to Distribute:  

      3(+2)=2(2−)

      3+6=2(2−)

Just like That!

2nd. We have to Rearrange terms:

    3+6=2(2−)

   3+6=2(−+2)

3rd. Distribute One Last Time:

       3+6=2(−+2)

      3+6= −2+4

4th. Simplify:

    3=−2−2

5th. Add 2 to both sides of the equation:

      3=−2−2

      3+2=−2−2+2

6th. Simplify:

    5=−2  

7th. Divide both sides of the equation by the same term:

       5=−2

      5/5 = -2/5

8th. Solve:

  x = -2/5

        Have an Amazing day!!

~Pinky~

i solved using brainly but i need to show my work what are the steps in solving please

Answers

Answer:

Step-by-step explanation:

to find the inverse first switch the x and y

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then change to exponential form to solve

[tex]log_{a} b=c[/tex] turns to[tex]a^{c}=b[/tex]

a is 10

b is y+3

c is x

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will be in the account after 10 years if it is compounded
quarterly?

Answers

Answer: 3526.5

Step-by-step explanation: 2500(1+0.035)^10

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Answers

Answer:

84

Step-by-step explanation:

Answer:

84

Step-by-step explanation:

16.8 would be multiplied by 5 since 0.2 is 1/5 of 1, therefore it would like

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Answers

Answer:

0.4032

Step-by-step explanation:

1. We assume, that the number 72 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

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4. We know, that x is 0.56% of the output value, so we can write it down as x=0.56%.

5. Now we have two simple equations:

1) 72=100%

2) x=0.56%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

72/x=100%/0.56%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

Answer:

no

Step-by-step explanation:

your a  fattie

 A barrel contains 56 litres of kerosene. It has two taps. One tap draws 500 ml every 6 minutes. After first 5 litres are drawn from the barrel, the second tap also starts. It draws 1 litre in every 5 minutes. How many hours will be taken in all to empty the tank?​

Answers

Answer:

The tank will empty in 4 hours.

Step-by-step explanation:

Since a barrel contains 56 liters of kerosene, and it has two taps, one tap that draws 500 ml every 6 minutes and after first 5 liters are drawn from the barrel, the second tap also starts, and it draws 1 liter in every 5 minutes, to determine how many hours will be taken in all to empty the tank, the following calculation must be performed:

0.5 x X = 5

X = 5 / 0.5

X = 10

10 x 6 = 60

1 hour = 51 liters

1 hour 30 minutes = 51 - (1 x 6) - (0.5 x 5) = 42.5

2 hours = 42.5 - (1 x 6) - (0.5 x 5) = 34

2 hours 30 minutes = 34 - (1 x 6) - (0.5 x 5) = 25.5

3 hours = 25.5 - (1 x 6) - (0.5 x 5) = 17

3 hours 30 minutes = 17 - (1 x 6) - (0.5 x 5) = 8.5

4 hours = 8.5 - (1 x 6) - (0.5 x 5) = 0

Therefore, the tank will empty in 4 hours.

10 points!!!!!!!!!!!!!

Answers

Answer:

41

Step by step explanation:

7,8+ 65 — 4
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Answers

51 is because division

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[tex]\red {incomplete \: question}[/tex]

The is nothing to solve

4. Which of the following is an exponential function?
O f(x) = 3x^3
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Answers

Answer:

f(x) = 3x^3

Step-by-step explanation:

i think maybe its not but i think so

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Answers

First, put each grade in terms of x. Most grades are compared to Sophomores, so I made that x

Freshmen = x + 10
Sophomores = x
Juniors = x + 20
Seniors = (x + 10) + 7 = x + 17

Then, the total number of students = 363, so we’ll make an equation that adds them all up in terms of x to equal 363

(x + 10) + x + (x + 20) + (x + 17) = 363

Combine like terms:
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Subtract 47 from both sides:
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Answers

Answer: $6,945.75

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PLEASE HELP! (No links!)
What is the volume of the salt shaker??

Answers

Answer:

10

Step-by-step explanation:

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Answers

Answer:

Step-by-step explanation:

1) 2e^3

2) x = 9

3) ln (16f^2o^2)

4) No solution

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