The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 10.5% of his customers buy a magazine and he thinks that he might be able to use the display space to sell something more profitable. Before making a final decision, he decides that for one day he will keep track of the number of customers that buy a magazine. (a) Explain why this is a binomial experiment. ____________________ (b) Assuming his suspicion that 10.5% of his customers buy a magazine is correct, what is the probability that exactly 5 out of the first 10 customers buy a magazine? ___________Give your answer as a decimal number rounded to two digits. (c) What is the expected number of customers from this sample that will buy a magazine?____________

Solve second one

The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 9.6% of his customers buy a magazine and he thinks that he might be able to use the display space to sell something more profitable. Before making a final decision, he decides that for one day he will keep track of the number of customers that buy a magazine. (a) Explain why this is a binomial experiment. _____________________________________(b) Assuming his suspicion that 9.6% of his customers buy a magazine is correct, what is the probability that exactly 5 out of the first 13 customers buy a magazine? Give your answer as a decimal number rounded to two digits. ____________________(c) What is the expected number of customers from this sample that will buy a magazine?  ________________________________

The owner of a small deli is trying to decide whether to discontinue selling magazines. He that only 10.9% of his customers buy a magazine and he thinks that he might be able to use the display space to sell something more profitable. Before making a final decision, he decides that for one day he will keep track of the number of customers that buy a magazine. suspects (a) Explain why this is a binomial experiment. (b) Assuming his suspicion that 10.9% of his customers buy a magazine is correct, what is the probability that exactly 2 out of the first 13 customers buy a magazine? Give your answer as a decimal number rounded to two digits. (c) What is the expected number of customers from this sample that will buy a magazine?

Determining whether two samples are independent or paired a... Charmaine has two ways to travel from her home in Norco to her office in Los Angeles. One is to go via the San Bernardino Freeway, and the other is to go via the Pomona Freeway. Recently, a lane was added to the San Bernardino Freeway. So, Charmaine wants to determine if it is now faster to take the San Bernardino Freeway than the Pomona Freeway. She selected a random sample of 12 of her trips via the San Bernardino Freeway and a random sample of 12 of her trips via the Pomona Freeway. The two samples were chosen separately, so that the selection of the trips via the San Bernardino Freeway did not affect the selection of the trips via the Pomona Freeway. Charmaine recorded the travel times (in minutes) for the trips in each of the two samples. The following table gives the data, sample means, and sample standard deviations. S.B. Fwy 79, 76, 66, 69, 71, 75, 67, 75, 65, 60, 76, 74 Pomona Fwy 63, 76, 79, 78, 74, 71, 65, 75,…

A gray mouse has a 30% chance of stealing cheese from a mousetrap without getting caught, while a white mouse has a 10% chance of succeeding at that. If 15 gray mice and 17 white mice try to steal cheese from different traps, how many pieces of cheese would you expect them to get away with? (А) 1.7 (B) 7.65 (C) 3.2 (D) 6.4 (E) 4.5 (F) 9.6 (G) 12.8 (Н) 6.2