Concept explainers
a.
To find the lowest score for an A.
a.
Answer to Problem 19E
Explanation of Solution
Given:
The mean score on test is
Calculation:
From the table on page no. 919, for
Therefore for grade A
The lowest score for an A will be
b.
To find the lowest passing score.
b.
Answer to Problem 19E
Explanation of Solution
Given:
The mean score on test is
Calculation:
The grade D is passing score
Therefore the minimum score to get to pass is
Therefore the lowest passing score is
c.
To find the interval for B’s.
c.
Answer to Problem 19E
Explanation of Solution
Given:
The mean score on test is
Calculation:
From the table on page no. 919, for
Therefore for grade B
The interval for B’s will be
Chapter 14 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
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