Web Analytics
dannytran
Answered

if the probability that A will be alive in 20 years is 0.7 and the probability that B will be alive in 20 years is 0.5, find:

the probability that they both will be alive in 20 years

the probability that only one is alive in 20 years

Verified Answer :

I would think the total probability for both being alive  is 0.7 0.5.
The probability for no one being alive is 0.3 0.5.
The probability for only one being alive is 1 - (0.7 0.5) - (0.3 0.5).

Related Questions