It may be easier to calculate the median if you rearrange the numbers first.
B
Practice makes perfect
We are given the following data set that describes class sizes.
29, 31, 28, 25, 27, 33, 33, 26
The first thing that should be done when finding the key features of a data set is rearranging the numbers from least to greatest.
25, 26, 27, 28, 29, 31, 33, 33
To identify the median, we observe the middle value.
25, 26, 27, 28 | 29, 31, 33, 33
There is no middle value. When this happens, we need to calculate the median by finding the average of the two values closest to the middle. When arranged from least to greatest, 28 and 29 are the most central values.
Median=28+ 29/2=28.5
This result corresponds to answer B.
