Question

A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n independent trials of the experiment.
n= 20, p=0.04, x=2

Answer 1

The probability is 0.1458.

The probability is given by:

$_{20}C_2(0.04)^2(1-0.04)^{20-2} \\ \\=_{20}C_2(0.04)^2(0.96)^{18}=0.1458$