A factory produces tools of which 98% are in good working order. Samples of 1000 tools are selected at random and tested.   a) Find the average number of tools that are in good working order in these samples. Enter the exact value of your answer.  b) Find the standard deviation of the number of tools in good working order in these samples. Round your answer to two decimal places.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A factory produces tools of which 98% are in good working order. Samples of 1000 tools are selected at random and tested.
 

a) Find the average number of tools that are in good working order in these samples. Enter the exact value of your answer. 
b) Find the standard deviation of the number of tools in good working order in these samples. Round your answer to two decimal places

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