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kifflom [539]
4 years ago
9

A researcher is interested in the relationship between leisure time physical activity, diet, extracurricular activities and hour

s of sleep with cardiovascular fitness in children ages 6 through 12. She will recruit 100 children to participate in the study. Cardiovascular fitness will be assessed via a 6-minute walk test. Leisure time physical activity, diet, extracurricular activities and hours of sleep will be assessed through questionnaires completed by their parents.
What are the dependent variables, difference/relationship, and independent variables. And Why?
Mathematics
1 answer:
Vaselesa [24]4 years ago
5 0

Answer:

The only dependent variable in this research work is the cardiovascular fitness.

The independent variables include leisure time, physical activity, diet, extracurricular activities and hours of sleep.

The relationship or difference between them is simple, the researcher believes that the cardiovascular fitness depends on all of the other variables described above.

Step-by-step explanation:

In an experiment, the independent variable is the variable whose values or qualities are not determined by any of the other variables present in the experimental study.

While a dependent variable is the variable whose values or qualities are determined by one or more other variables present in the experimental setup.

Dependent variables depend on the independent variables.

Just like here, the researcher hopes to learn how much dependence of cardiovascular fitness (dependent variable) is on leisure time, physical activity, diet, extracurricular activities and hours of sleep (the independent variables whose values or qualities are not determined by any other variable in the study).

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BRAINLIST 69 POINTS Solve the problems. When you have finished, submit this assignment to your teacher by the due date for full
nlexa [21]
A)
Withdraws--5.23, -5.22, and -7.89
Deposits-34.98, 51.02, and 51.22
(Rational numbers include integers, whole numbers, decimals that don't repeat or go on forever, and fractions)

B)
-7.89, -5.23, -5.22, 34.98, 51.02, 51.22
(Negatives are less than 0, so when the negative gets bigger, it means that the number is becoming less, so the opposite of positive numbers)

C)
98+34.98+51.02+51.22= 235.22
235.22- 5.22-5.23-7.89= 216.88
216.88 is the answer
(since withdraws are subtracting from the total, you want to add up all of the positive numbers so the deposits plus the amount she had in the beginning, and then subtract the withdraws)

Hope this helps!
7 0
3 years ago
Eight committee members are meeting in a room that has twelve chairs. In how many ways can they sit in the chairs
amm1812

Answer:

<h2>495 different ways</h2>

Step-by-step explanation:

We will use the combination rule to solve this questions since it bothers selection. Combination has to do with selection.

If r objects are to be selected from n pool of objects, this can be done in nCr number of ways.

nCr = n!/(n-r)!r!

If there are Eight committee members meeting in a room that has twelve chairs, the number of ways they can sit in the chair can be done in 12C8 number of ways.

12C8 = 12!/(12-8)!8!

12C8 = 12!/4!8!

12C8 = 12*11*10*9*8!/4*3*2*8!

12C8 =  12*11*10*9/4*3*2

12C8 = 11*10*9/2

12C8 = 11*5*9

12C8 = 495

<em>Hence the committee can sit in the chairs in 495 different ways</em>

7 0
4 years ago
A glass pitcher contains 65 ounces of juice which is poured equally into six glasses. How many ounces of juice does each glass c
labwork [276]

Step-by-step explanation:

(2/3)/6

(2/3)* (1/6) = 2/18 = 1/9 quart in each glass

hope it helps

3 0
3 years ago
Enter the trigonometric equation you would use to solve for x. Do not solve the equation.
pentagon [3]

Answer:

x=12\times \text{tan}(20^0)

Step-by-step explanation:

From the figure attached,

Measure of an angle = 20°

Measure of the opposite side = x

Measure of the adjacent side = 12

By applying tangent rule in the given right triangle,

tan(20°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

\text{tan}(20^0)=\frac{x}{12}

x=12\times \text{tan}(20^0)

Therefore, equation to get the value of 'x' will be,

x=12\times \text{tan}(20^0)

3 0
3 years ago
Please help me with this. This problem is actually making my life worst at the moment. Please, someone, help me.
Xelga [282]
OMG !!!!!!! I HAVE THE SAME QUESTION TO ASK

7 0
4 years ago
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