Thirty percent of math classes at South Seattle College are taught by adjunct (part-time) instructors.Suppose fifteen classes are chosen randomly.We are interested in the number of these classes that are taught by adjunct instructors.

Let x be the number of classes taught by adjunct instructors, then x has a binomial distribution, with n = 15 and p = 0.30.

Find the following:

Round your answers to one decimal place:

a.The mean of the distribution is______________ adjuncts.

b.The standard deviation of the distribution is________________adjuncts.