To find: Which measure of central tendency best summarizes the test scores.
Answer to Problem 26SR
The central tendency median is best to summarise the test scores.
Explanation of Solution
Given:
Calculation:
The given data is
Find mean, medina and mode of this data.
In order to find the median arrange this data in numeric order
The number of data is 15 which is odd.
So, median of the set of the data is the middle value which is
Hence, median is
Now, mode is the number which appears most in the data set.
So, the mode for the given set of data is
Among the mean, median and mode, the least is mean.
And among mode and median, we can give preference to median.
Therefore, the central tendency median is best to summarise the test scores.
Chapter 13 Solutions
Pre-Algebra Student Edition
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