show all the work must be organized to understand for Finance 230 class

1. Problem 4.13. Do Americans prefer name-brand milk or store brand milk? A survey was conducted by Harris Poll Interactive, Inc, in November 2014. Suppose the results, based on 1,138 females and 1,138 males were as follows: Source: Data extracted from Harris Interactive, "Do Americans Prefer Name-Brands or Store Brands? Well, That Depends, " bir. Ir. HFpaOKT. If an American is selected at random, what is the probability that he or she a. prefers name-brand milk? b. is male and prefers name-brand milk? c. is male or prefers name-brand milk? d. Explain the difference in the results in (b) and (c). 2. Problem 5.5. page 170 The number of arrivals per minute at a bank located in the central business district of a large city was recorded over a period of 200 minutes, with the following results: a. Compute the expected number of arrivals per minute. b. Compute the standard deviation. (Hint: compute probability distribution first)