Forty-five percent of customers at a grocery store use a coupon. Let X = the number of customers selected at random before one is found who will use a coupon. What are the mean and standard deviation of X?
Round each answer to 3 decimal places.
Mu Subscript x Baseline = StartFraction 1 Over p EndFraction =
Sigma Subscript x Baseline = StartFraction StartRoot 1 minus p EndRoot Over p EndFraction =