# Question

Consider the situation in the previous problem, and assume that the distribution holds for all weeks throughout the year and that weekly orders are independent from week to week. Let Y denote the number of weeks in the year in which no orders are received (assume a year of 52 weeks).

a. What kind of random variable is Y? Explain.

b. What is the expected number of weeks with no orders?

a. What kind of random variable is Y? Explain.

b. What is the expected number of weeks with no orders?

## Answer to relevant Questions

An analyst kept track of the daily price quotation for a given stock. The frequency data led to the following probability distribution of daily stock price: Price x in Dollars P(x) 17 ............ 0.05 17.125 ...The time, in minutes, necessary to perform a certain task has the uniform [5, 9] distribution. a. Write the probability density function of this random variable. b. What is the probability that the task will be performed in ...Ten percent of the items produced at a plant are defective. A random sample of 20 items is selected. What is the probability that more than three items in the sample are defective? If items are selected randomly until the ...The cafeteria in a building offers three different lunches. The demands for the three types of lunch on any given day are independent and Poisson distributed with means 4.85, 12.70, and 27.61. The cost of the three types is ...Find two values of the standard normal random variable, z and – z, such that the two corresponding tail areas of the distribution add to 0.01.Post your question

0