Algebra 1 Mean Median Mode Dataset Review Solutions

To calculate the central tendency of a set of numbers, first organize the values in ascending order. For the first calculation, find the middle value by locating the number at the center of the list. If there is an even number of values, take the average of the two middle numbers.

Next, to determine the average of the set, add up all the numbers and divide by the total number of values. This will give you the overall sum per item. Double-check your calculation to ensure no values are left out.

For the last step, identifying the most frequent value in the data set, count how many times each number appears. The value that occurs the most is the one you’re looking for. If more than one value appears the same number of times, the set is considered to have multiple modes.

Recheck your work by applying these steps to other examples. This will help reinforce your understanding of the process and make sure you’ve applied the correct methods.