Answered: In the course of doing her homework,…

In the course of doing her homework, Isabella gets the following z-scores: -1.98, 0.17, 8.09 and 0.01. Should she suspect that any of these are incorrect? Explain.

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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Question

100%

How will I find the probabilities? Thanks in advance.

In the course of doing her homework, Isabella gets the following z-scores: -1.98, 0.17, 8.09 and
0.01. Should she suspect that any of these are incorrect? Explain.

Expert Solution

Step 1

According to empirical rule,

68% data lie within 1 standard deviations

95% data lie within 2 standard deviations

99.7% data lie within 3 standard deviations

Rest 0.3% data lie within 4 standard deviations

Step by step

Solved in 4 steps with 3 images

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