On average, Upstate Chevrolet sells 20 cars each week, with a standard deviation of 2. How many cars sold represents 2 standard deviations above the mean? Answer     How many cars sold represent 1 standard deviation below the mean? Answer     Approximately 68% will fall between Answer   and Answer   .   Approximately 99.7% will fall between Answer   and Answer   .   What is the probability that the car lot will sell at least 18 cars? Answer   %

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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On average, Upstate Chevrolet sells 20 cars each week, with a standard deviation of 2.

How many cars sold represents 2 standard deviations above the mean? Answer

 

 

How many cars sold represent 1 standard deviation below the mean? Answer

 

 

Approximately 68% will fall between Answer

 
and Answer
 
.

 

Approximately 99.7% will fall between Answer

 
and Answer
 
.

 

What is the probability that the car lot will sell at least 18 cars? Answer

 
%

 

What is the probability that a car lot will sell at most 26 cars? Answer

 
%

 

 
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