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SVEN [57.7K]
3 years ago
15

Someone has conducted a study to see if there is increased risk of getting lung cancer if you work in a coal mine. In group 1, 3

0 of the 150 coal miners got lung cancer. In group 2, 5 out of the 250 non- coal miners got lung cancer. What is the sample relative risk
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

The sample relative risk is 10.

<h3>What is relative risk? </h3>

Sample relative risk is the ratio of disease risk or death in an exposed group to the disease risk or death in an unexposed group. Sample relative risk is a descriptive statistic.

What is the sample relative risk?

Sample relative risk = fraction of coal miner who got lung cancer / fraction of non coal miners who got lung cancer

Sample relative risk = (30 / 150) ÷ (5/250)

(1/5) ÷ (1/50

1/5 x 50 = 10

To learn more about sample, please check: brainly.com/question/18521835

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3 years ago
Alanna is painting a border on a wall. The border consists of kite-shaped figures as shown. mc022-1.jpg Each kite measures 6 inc
Sedaia [141]

the question does not present the picture, but this does not interfere with the resolution


step 1

Find the area of a kite

we know that

area of a kite=(1/2)*[d1*d2]

where d1 and d2 are the diagonals

so 

area of a kite=(1/2)*[6*12]-----> 36 in²

<span>The wall is 12 feet across-----> convert to in-----> 12*12----> 144 in

step 2
find the number of kite to paint
divide across of the wall to across of a kite
144/6-----> 24 

step 3
find the n</span><span>umber of square inches of the wall to be covered with comets
</span>24*area of one kite-----> 24*36-----> 864 in²

the answer is 864 in²
<span>Note For this calculation, as there is no drawing we have assumed that the diagonal of the 6-inch kite is horizontal
</span>
case b) 
<span>If the diagonal of the 12-inch kite was horizontal, then the calculation would be
</span>step 2
find the number of kite to paint
divide across of the wall to across of a kite
144/12-----> 12

step 3
find the number of square inches of the wall to be covered with comets
12*area of one kite-----> 12*36-----> 432 in²

the answer would be 432 in²


5 0
4 years ago
Explain why an inverse variation function is not the best model for the data set​
dmitriy555 [2]

Answer: The cause of exponential decay. Sowwy if im wrong

Step-by-step explanation:

An inverse variation function is not the best model because the data points show an exponential decay. The fact that this is true for ALL of the points shown indicates we have an inverse variation of the form x*y = k where k = 60 in this case. ... For any inverse variation, as x increases, y will decrease (and vice versa).

5 0
4 years ago
The diagram shows two congruent equilateral triangles whose overlap is a hexagon.
boyakko [2]

Answer:

38

Step-by-step explanation:

7 0
3 years ago
HELP ME PLEASE!!!!!!
Mashcka [7]
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The formula to find the volume is 
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in your equation's terms it would look like  (6)(6)(9)/3


3 0
3 years ago
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