The sale price of a certain model of grand piano across the country is approximately normally distributed with a mean of $86,000 and a standard deviation of $4,400. a) What is the probability of a grand piano selling for more than $88,600 4.93 X b) Consider a set of 20 grand pianos. What is the probability that 5 or less of the pianos sell for more than $88,600? c) As these pianos sell across the country, what is the probability that the first piano that sells for more than $88,600 is the fourth piano?
The sale price of a certain model of grand piano across the country is approximately normally distributed with a mean of $86,000 and a standard deviation of $4,400. a) What is the probability of a grand piano selling for more than $88,600 4.93 X b) Consider a set of 20 grand pianos. What is the probability that 5 or less of the pianos sell for more than $88,600? c) As these pianos sell across the country, what is the probability that the first piano that sells for more than $88,600 is the fourth piano?
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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1. Need help please,
Also please point out the final answer for a,b,c clearly
Thanks!
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