The sale price of a certain model of grand piano across the country is approximately normally distributed with a mean of $81,000 and a standard deviation of $3,900. a) What is the probability of a grand piano selling for more than $82,200 b) Consider a set of 20 grand pianos. What is the probability that 5 or less of the pianos sell for more than $82,200? c) As these pianos sell across the country, what is the probability that the first piano that sells for more than $82,200 is the third piano?

The sale price of a certain model of grand piano across the country is approximately normally distributed with a mean of $81,000 and a standard deviation of $3,900. a) What is the probability of a grand piano selling for more than $82,200 b) Consider a set of 20 grand pianos. What is the probability that 5 or less of the pianos sell for more than $82,200? c) As these pianos sell across the country, what is the probability that the first piano that sells for more than $82,200 is the third piano?

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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