Question

A sixth grade class recorded the number of letters in each students first name. The results are shown in the dot plot.Which is the best representation of the center of this data set?A. 8B. 5C. 7D. 6

Answer 1

Center of a data set is a single number that sumarizes the entire data, the median is the best measure of center to use in this distribution.

Median is the midpoint value of a data set, where the values are arranged in ascending or descending order:

As a first step let's organize the data in ascending order:

3, 4, 5, 6, 7, 8, 9, 10, 11

The median is 7.