hello i need help with these statistic questions thank you

q7:

Jeanine Baker makes floral arrangements. She has 15 different cut flowers and plans to use 6 of How many ways can the 6 flowers be chosen? them. How many different selections of the 6 flowers are possible?Past records indicate that the probability of online retail orders that turn out to be fraudulent is 0.06. Suppose that, on a given day. '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 be fraudulent? The mean number of online retail orders that turn out to be fraudulent is (Type an integer or a decimal. Round to four decimal places as needed.) The standard deviation of the number of fraudulent retail orders is (Type an integer or a decimal. Round to three decimal places as needed.) b. What is the probability that zero online retail orders will turn out o be fraudulent? {Type an integer or a decimal. Round to four decimal places as needed.) c. What is the probability that one online retail order will turn out to be fraudulent? {Type an integer or a decimal. Round to four decimal places as needed.) cl. What is the probability that two or more online retail orders will turn out to be fraudulent? {Type an integer or a decimal. Round to four decimal places as needed.) You would like to make a salad that consists of lettuce, tomato, cucumber. and radishes. You go to the supermarket intending to purchase one variety of each of these ingredients You discover that there are eight varieties of lettuce, four varieties of tomatoes. two varieties of cucumbers. and three varieties of radishes for sale at the supermarket. How many different salads can you make? You can make diflerent salads. (Type a whole number.)