Question 1120199
use the binomial probability formula
:
Probability (P) (k successes in n trials) = nCk * p^k * (1-p)^(n-k), where nCk = n! / (k! * (n-k)!)
:
k=2, n=5, p=0.30
:
P (2 successes in 5 trials) = 5C2 * (0.30)^2 * (1-0.30)^(5-2) = 0.3087
: