1. Igor Beaver is a salesman for Planet of the Grapes, a mediumsized winery near Solvang. Igor is going on a sales trip visiting10 restaurants throughout Southern California. Historically, Igorconvinces 30% of the restaurants he visits to stock and sell hiswine. a. What is the expected number of restaurants that Igor willclose a sale on this trip? b. Find the variance. What is theprobability that on this sales trip Igor make sales at c. 4restaurants or less? d. Between 2 and 4 restaurants? e. Exactly 4restaurants? f. At least 5 restaurants? g. Igor gives each newclient a gift. How many gifts should he take on the trip to be atleast 99% sure that he has enough? h. Find and plot the probabilitydistribution and cumulative distribution using Excel.