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djyliett [7]
4 years ago
14

Researchers wanted to know if there is a link between proximity to​ high-tension wires and the rate of leukemia in children. To

conduct the​ study, researchers compared the rate of leukemia for children who lived within​ 1/2 mile of​ high-tension wires to the rate of leukemia for children who did not live within​ 1/2 mile of​ high-tension wires. The researchers found that the rate of leukemia for children near​ high-tension wires was higher than the rate for those not near​ high-tension wires. Can the researchers conclude that proximity with​ high-tension wires causes leukemia in​ children? ​(This is a reading assessment question. Be certain of your answer because you only get one attempt on this​ question.)
A. ​Yes, because this is an observational​ studies, which allow for statements of causality.
B. ​No, because this is an observational study.
C. ​Yes, because this is a designed​ experiment, which allow for statements of causality.
D. ​No, because this is a designed experiment.
Mathematics
1 answer:
Allushta [10]4 years ago
6 0

Answer:

No, because this is an observational study.

Step-by-step explanation:

The researchers found that the rate of leukemia for children near​ high-tension wires was higher than the rate for those not near​ high-tension wires.

So, the answer is No, the researchers cannot conclude that proximity with​ high-tension wires causes leukemia in​ children as this is only an observational study.

Observational study is that study where the researcher observes the effect of a risk factor, diagnostic test or treatment without trying to control who is or is not exposed to it.

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Answer:

The first thing you do is:        

Step-by-step explanation:

How to calculate 60 divided by 19

Here we will show you step-by-step with detailed explanation how to calculate 60 divided by 19 using long division.

Before you continue, note that in the problem 60 divided by 19, the numbers are defined as follows:

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19 = divisor

Step 1:

Start by setting it up with the divisor 19 on the left side and the dividend 60 on the right side like this:

           

 1 9 ⟌ 6 0  

Step 2:

The divisor (19) goes into the first digit of the dividend (6), 0 time(s). Therefore, put 0 on top:

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Step 3:

Multiply the divisor by the result in the previous step (19 x 0 = 0) and write that answer below the dividend.

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Step 4:

Subtract the result in the previous step from the first digit of the dividend (6 - 0 = 6) and write the answer below.

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Step 5:

Move down the 2nd digit of the dividend (0) like this:

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 1 9 ⟌ 6 0  

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Step 6:

The divisor (19) goes into the bottom number (60), 3 time(s). Therefore, put 3 on top:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

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Step 7:

Multiply the divisor by the result in the previous step (19 x 3 = 57) and write that answer at the bottom:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

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      5 7  

Step 8:

Subtract the result in the previous step from the number written above it. (60 - 57 = 3) and write the answer at the bottom.

       0 3  

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