The data set represents the responses of 15 students who were asked how many text messages they send in a day. {55, 50, 54, 51, 52, 53, 50, 51, 2, 56, 55, 56, 54, 57, 55}
The best measure of center for this data set is the mean, median, range or interquartile range.
and its value is 51, 52 , 53 or 54

Respuesta :

Rearranging the data set in ascending order:

50    50    51    51    52    52    53    54    54    55    55    55    56    56    57

We have 15 values in total and the median is located at
[tex]Median= \frac{n+1}{2}= \frac{15+1}{2}=8^{th} [/tex] location

The [tex]8^{th}[/tex] value is 54 which is the best measure of center for the data set.