Concept explainers
a.
To find: What will happen to the mean absolute deviation if each price increases by
a.
Answer to Problem 13HP
By adding a fixed value to each prices does not change the mean absolute deviation.
Explanation of Solution
Given: Prices of
The price increases by
Calculation:
Mean for original data,
To find mean absolute deviation of original data,
Add
To find mean absolute deviation of the data with
Therefore we can conclude that by adding a fixed value to each prices does not change the mean absolute deviation.
b.
To find: What will happen to the mean absolute deviation if each price doubles?
b.
Answer to Problem 13HP
By doubling each prices doubles the mean absolute deviation.
Explanation of Solution
Given: Prices of
The price doubles.
Calculation:
Mean for original data,
To find mean absolute deviation of original data,
Doubling each given prices,
To find mean absolute deviation of the data with multiplying by
Therefore we can conclude that doubling the prices would double the mean absolute deviation.
Chapter 10 Solutions
Glencoe Math Accelerated, Student Edition
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