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Mice21 [21]
2 years ago
7

If you are studying the effects of UV rays on eyesight and you group 10 people together and make them wear sunglasses for 10 wee

ks and see if their eyesight is affected and then take another group and do not give them sunglasses and test their vision after 10 weeks, what is the variable of interest? (note this is not an ethical study)
Mathematics
2 answers:
Anastasy [175]2 years ago
8 0
The variable of interest would be whether or not their eyes were affected. 
Variables of interest are like independent variables, they are the variable that you are testing for change.
Sergio039 [100]2 years ago
7 0

Answer:

Step-by-step explanation:

Given that we are studying the effects of UV rays on eyesight

Group 10 people together and make them wear sunglasses for 10 weeks and see if their eyesight is affected and then take another group and do not give them sunglasses and test their vision after 10 weeks

Here we want to study the effect of UV rays on eyesight.

Thus the variable of interest is the eyesight and it is to be studied whether wearing sunglasses really has influence on improved eye sights.

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A study was conducted on the effects of divorce. Researchers gathered data from a random sample of 5,125 adults and measured qui
shusha [124]

Answer:

We can infer a cause-and-effect relationship because multiple variables were included.

Step-by-step explanation:

The multiple attributes for the divorced ones are

1) less physically active

2) an unhealthy weight,

3) smokers.

The attribute showing the % of the married is

1) death

So when we compare the two groups married and divorced we see different variables are involved in evaluating the percentage.

This shows a cause and effect involving multiple variables.

In cause and effect one variable is dependent and the other is independent.

The cause is the independent variable and effect is the dependent variable.

CAUSE                          EFFECT

Married                         Death

Divorced                     1) less physically active

                                  2) an unhealthy weight,

                                     3) smokers.

5 0
2 years ago
“Great job, you've already earned 1300 points, but there are 5 more days in this month. How many points a day do you need to rea
sergiy2304 [10]
You would have to get 56 points everyday.
If you subtract 1300 from 1580 you get 280. divide 280/5 which equals 56.
56*5=280
280+1300=1580.
56 is the amount of points you need
6 0
2 years ago
Read 2 more answers
A pizzeria makes pizzas in the shape of a regular octagon, and cuts them into 8 identical triangular slices. The diameter of the
notsponge [240]

Answer:

am i supposed to do area? volume? circumfrence?

4 0
2 years ago
the local volleyball team hosts a concession stand to raise money. They can spend $120 to purchase popcorn, candy, and drinks. t
Art [367]
To solve this question, I did an equation:
0.75x + 1.20y = 120
0.75(95) + 1.20(35) = 120
Then multiply:
71.25 + 42 = 120
Now to check:
71.25 + 42 = 113.25
Answer: 120 - 113.25 = $6.75 Hope this helps

7 0
2 years ago
A limited-edition poster increases in value each year with an initial value of $18. After 1 year and an increase of 15% per year
Roman55 [17]

Answer:

The required equation is y = 18(1.15)^x.

Step-by-step explanation:

Consider the provided information.

The Initial value of poster = $ 18

After 1 year amount of increase = $ 20.70

With the rate of 15% = 0.15

Let future value is y and the number of years be x.

y = 18(1.15)^x

Now verify this by substituting x=1 in above equation.

y = 18(1.15)^1=20.7

Which is true.

Hence, the required equation is y = 18(1.15)^x.

7 0
2 years ago
Read 2 more answers
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