Question

If we select one person randomly, what is the probability that he/she is smoking if you know that he/she is a widow?

Answer 1

Answer:

total widow s = 45

smokers =30

so probability of smokers from windows

C(30,1)/ C(45,1) = 30/45 = 2/3

Answer 2

Answer:

Event - The probability that he/she is smoking if he/she is a widow.

n=210

r=30

p(E) = r/n = 30/210 = 1/7

Therefore, the probability that he/she is smoking is 1/7