The mean and the standard deviation of the binomial distribution can be obtained by using the formula as given below. You may round your answer to the nearest hundredth. You multiply the probability of getting a boy times the probability of getting a girl the and rule and then add that to the probability of getting first a girl and then a boy.
Binomial Expansion Equation Represents all of the possibilities for a given set of unordered events n.
If doing this by hand apply the binomial probability formula. Your answer should be. P X 3. Example 1 A couple who are both carriers for a recessive disease wish to have 5 children.