In a group of people, the expected number who wears glasses is $2$ and the variance is $1.6$. Fi

Question

In a group of people, the expected number who wears glasses is $2$ and the variance is $1.6$. Find the probability that a person chosen at random from the group wears glasses; $6$ people in the group wear glasses.

Accepted Answer

(a) $0.2$; (b) $0.00551$.

Finding number of trials and success probability

Finding number of trials and success probability