What does the mean, median, mode and range mean

Step-by-step explanation:

Mean-The sum of numbers in a set of data divided by the number of pieces of data

Median a measure of center in a set of numerical data. The median of a list of values is the value appearing at the center of a sorted version of the list - or the mean of the two central values, if the list contains an even number of values

Mode-The numbers or items that appear most often in a set of data

Range-The difference between the greatest number and least number in a set of data

From McGrawHill Education Vol 2 Middle school 6th grade course 1