Adam Sucrose is a market trader and counts the number of customers he sells to every day. The daily customer count has a mean amount of 700. The standard deviation is 60. (a) What is the probability that any day selected would have a customer count: (i) between 670 and 760? (ii) is 761 or above? (b) 95% of daily customer counts around the mean are between what two amounts?
Adam Sucrose is a market trader and counts the number of customers he sells to every day. The daily customer count has a mean amount of 700. The standard deviation is 60. (a) What is the probability that any day selected would have a customer count: (i) between 670 and 760? (ii) is 761 or above? (b) 95% of daily customer counts around the mean are between what two amounts?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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