Suppose 309% of the students wish to buy the hard copy of the Probability & Statistics book and remaining to buy the soft copy from a store. Consider randomly selecting 20 students. (a) What is the probability that the number of students who wish to purchase hard copy is more than two standard deviations away from the mean value? (b) The book store has 15 hard copies and license of 15 soft copies. If 20 people come in one by one to purchase the book, what is the probability that all 20 get the type of book they want from the store?

Suppose 309% of the students wish to buy the hard copy of the Probability & Statistics book and remaining to buy the soft copy from a store. Consider randomly selecting 20 students. (a) What is the probability that the number of students who wish to purchase hard copy is more than two standard deviations away from the mean value? (b) The book store has 15 hard copies and license of 15 soft copies. If 20 people come in one by one to purchase the book, what is the probability that all 20 get the type of book they want from the store?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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