the probability that a radomly chosen potential customer will make a purchse is 0.20if a sales man calls on 6 customers .what is the probabilty they will make exactly 4 sales
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
P(no sale) = .2
P(sale) = 1-.2 = .8
(.2)^4 * .8^2 = ?