Stats: Modeling the World Nasta Edition Grades 9-12
Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter 4, Problem 44E

(a)

To determine

To Explain: on the basis of given histogram.

(a)

Expert Solution
Check Mark

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 4, Problem 44E , additional homework tip  1

By seeing the histogram, it is observed that the bars are too much narrow to be useful. The distribution is represents the 3 humps so there are 3 modes and about uniform and it is concluded that the distribution is multimodal.

(b)

To determine

To Explain: the distribution of grades.

(b)

Expert Solution
Check Mark

Explanation of Solution

Given:

  Stats: Modeling the World Nasta Edition Grades 9-12, Chapter 4, Problem 44E , additional homework tip  2

By seeing the distribution, it is observed that the shape of the distribution is not symmetric; it is skewed to the left or negatively skewed. There are approximately 6 to 7 outliers which are looking forth.

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