I have a question this solution that I looked up. My question is where the bold italicized numbers came from. 1) For this part n=30 So for this the standard deviation is= 10030√10030 So the required probability is: P(||X⎯⎯⎯−273||≤16)=P(−16≤X⎯⎯⎯−273≤16) =P(−1610030√≤X⎯⎯⎯−27310030√≤1610030√) =P(−0.876356≤Z≤0.876356) =P(Z≤0.876356)−P(Z<−0.876356) =0.8096−0.1904=0.6192

I have a question this solution that I looked up. My question is where the bold italicized numbers came from. 1) For this part n=30 So for this the standard deviation is= 10030√10030 So the required probability is: P(||X⎯⎯⎯−273||≤16)=P(−16≤X⎯⎯⎯−273≤16) =P(−1610030√≤X⎯⎯⎯−27310030√≤1610030√) =P(−0.876356≤Z≤0.876356) =P(Z≤0.876356)−P(Z<−0.876356) =0.8096−0.1904=0.6192

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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