1/5 goes into 37 185 times:
37 / (1/5) = 37*(5/1)=185
The absolute value of 0.6 is 0.6 beacause its the same thing
I suppose you mean to have the entire numerator under the square root?

We can use a trigonometric substitution to start:

Then for
,
; for
,
. So the integral is equivalent to

We can write

so the integral becomes

Answer:
Sample relative risk is 10.
Step-by-step explanation:
We are given the following in the question:
Group 1 of coal miners: 30 out of 150 get lung cancer.

Group 2 of non-coal miners: 5 out of 250 get lung cancer

Sample relative risk:
- It is the ratio of probability of an outcome in an exposed group to the probability of an outcome in an unexposed group.
Sample relative risk =

Thus, sample relative risk is 10.