Question

the probability that a house in an urban area will develop a leak is 5%. if 23 houses are randomly selected, what is the probability that none of the houses will develop a leak?

Answer 1

Try the binomial distribution.

Here is the formula:

P(x) = (nCx)(p^x)[q^(n-x)]

x = 0
p = .05
n = 23

Substitute into the formula to determine the probability.

Answer 2

Note: q = 1 - p

Answer 3

0.000001