Past records indicate that the probability of online retail orders that turn out to be fraudulent is 0.07. Supposethat, on a givenday, 18 online retail orders are placed. Assume that the number of online retail orders that turn out to be fraudulent is distributed as a binomial random variable. Complete parts(a) through(d) below.

a. What are the mean and standard deviation of the number of online retail orders that turn out to befraudulent?

The mean number of online retail orders that turn out to be fraudulent is

nothing

.

(Type an integer or a decimal. Round to four decimal places asneeded.)