
Concept explainers
(a)
To Find: If she score her lowest score, which measure of central tendency would increase more, the mean and the median? Explain.
(a)

Answer to Problem 8PPS
The measure of central tendency has increased more in Median than Mean
Explanation of Solution
Given:Sasha scored the following point total in
Case I
Finding Mean:
Mean =
Finding Median:
Arranging the number in ascending order.
The data is odd thus
Take the middle number.
Hence
Median=
Case second:
If we goes to the lowest amount we get the mean and median as
Finding Mean:
Mean=
Finding Median:
After removing the lowest score, the number of observations is even
Thus,
Median
Median=
From comparing case I with case II
It is concluded that
The measure of central tendency has increased more in Median than Mean.
(b)
To Find:In her next basketball game, Sasha scores
(b)

Answer to Problem 8PPS
The measure of central tendency has decreased equally in Median and Mean.
Explanation of Solution
Given: Sasha scored the following point total in
Case I
Finding Mean:
Mean =
Finding Median:
Arranging the number in ascending order.
The data is odd thus
Take the middle number.
Hence
Median=
Case second:
Sasha scores
Finding Mean:
Mean=
Finding Median:
Median
Median=
From comparing the mean and median of case I with case II
It is concluded that
The measure of central tendency has decreased equally in Median and Mean.
Chapter 13 Solutions
Pre-Algebra Student Edition
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