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Historical data show that customers who download music from a popular Web service spend approximately $20 per month, with a standard deviation of $3. Assume the spending follows the normal probability distribution. Find the probability that a customer will spend at least $17 per month. How much (or more) de the top 9% of customers spend? What is the probability that a customer will spend at least $17 per month? 0.8413 (Round to four decimal places as needed.) How much do the top 9% of customers spend? $(Round to the nearest cent as needed.)

Historical data show that customers who download music from a popular Web service spend approximately $20 per month, with a standard deviation of $3. Assume the spending follows the normal probability distribution. Find the probability that a customer will spend at least $17 per month. How much (or more) de the top 9% of customers spend? What is the probability that a customer will spend at least $17 per month? 0.8413 (Round to four decimal places as needed.) How much do the top 9% of customers spend? $(Round to the nearest cent as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Historical data show that customers who download music from a popular Web service spend approximately $20 per month, with a standard deviation of $3. Assume the spending follows the normal probability distribution. Find the probability that a customer will spend at least $17 per month. How much (or more) do the top 9% of customers spend? What is the probability that a customer will spend at least $17 per month? 0.8413 (Round to four decimal places as needed.) How much do the top 9% of customers spend? (Round to the nearest cent as needed.)
Transcribed Image Text:Historical data show that customers who download music from a popular Web service spend approximately $20 per month, with a standard deviation of $3. Assume the spending follows the normal probability distribution. Find the probability that a customer will spend at least $17 per month. How much (or more) do the top 9% of customers spend? What is the probability that a customer will spend at least $17 per month? 0.8413 (Round to four decimal places as needed.) How much do the top 9% of customers spend? (Round to the nearest cent as needed.)
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