Mean: add all the numbers & divide by how many numbers thee are
Median: arrange the numbers from least to greatest then mark off one from each side until you get to the middle number. That is the median
Mode: To find the mode, or modal value, it is best to put the numbers in order. Then count how many of each number. A number that appears most often is the mode.
Range: To find range, find the highest number & subtract the lowest number from it. That number is the range
