The average commute to work(one way) is 25 minutes according to the 2005 American community survey. If we assume that commuting times are normally distributed and that the standard deviation is 6.1 minutes, find the probabilities. Using graphing calculator.            Question: the selected commuter spends less than 17 minutes commuting one way? I keep getting an error message when using my ti84.

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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The average commute to work(one way) is 25 minutes according to the 2005 American community survey. If we assume that commuting times are normally distributed and that the standard deviation is 6.1 minutes, find the probabilities. Using graphing calculator.            Question: the selected commuter spends less than 17 minutes commuting one way? I keep getting an error message when using my ti84. 

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