Question

You have been given the following set of data: 1, 2, 1, 3, 2, 1, 9. Which of the following is the better measure of central tendency for this data set?range, mode, variables or median

Answer 1

The set of data we have is:

`1,2,1,3,2,1,9`

To represent the central tendency, we need a measure that is representative of most of the data we have. In the case that the values are similar or there is not much variation, it is most common to use the mean.

But in cases like the one, we have in this problem where most of the values are close together like 1, 2, or 3, and then we have a "much" greater or different value, like the 9 we have in the set, it is better to use the median.

The Median will be a better measure of the central tendency because it will reflect where most of the values of the set of data are located, and the 9 will not affect as much as it can affect by using the mean.

Answer: Median