Claire works at Red Robin every weekend serving about 30 tables. It is estimated that the average tip amount she gets per table follows a normal distribution with an average of S8.25 and a standard deviation of $1.50 a) b) c) Draw a normal curve that describes her tip amount on average. What is the probability that the average tip amount is between $ 5.25 and $11.25? On average, how much does she make per table during her best 10% of weekends? What is the probability that she cams a total of $250 for 30 tables? [ Hint multiply the mean and standard deviation by 30 and then find the z-score]?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?