a.
Find frequency distribution of four scores.
a.
Answer to Problem 19WE
Explanation of Solution
Given information:
Calculation:
Let the freequency distribution of foue scores be
The mean is the average of the numbers.
Hence, the mean is
Find the standard deviation of the distribution.
If
Substitute the given values for
Simplify,
Hence,
b.
Find frequency distribution of four scores.
b.
Answer to Problem 19WE
Explanation of Solution
Given information:
Calculation:
Let the frequency distribution of four scores be
Hence, the mean is
Find the standard deviation of the distribution.
If
Substitute the given values for
Simplify,
Hence,
c.
Find frequency distribution of four scores.
c.
Answer to Problem 19WE
Explanation of Solution
Given information:
Calculation:
Let the frequency distribution of four scores be
Hence, the mean is
Find the standard deviation of the distribution.
If
Substitute the given values for
Simplify,
Hence,
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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