# What are the mean, median, and mode for the following data set? 15, 34, 78, 90, 100, 75, 87, 71, 75, 78, 82, 90, 94, 78

median is 78 , mode is 78, if i'm not wrong.

The mode is the number that appears the most within the given list. 78 appears the most (3 times). Your mode is 78. The mean is the sum of all the numbers divided by the total numbers. 15 + 34 + 78 + 90 + 100 + 75 + 87 + 71 + 75 +78 + 82 + 90 + 94 + 78 = 1,047. Divide our sum by the total amount of numbers. 1,047 / 14 = 74.78. Your mean is 74.78. The median is the middle number within a list of numbers from least to greatest. Let's set it up. 15, 34, 71, 75, 75, 78, 78, 78, 82, 87, 90, 90, 94, 100. Cross out the smallest number with the biggest number until you can no longer do so. 15, 34, 71, 75, 75, 78, 78, 78, 82, 87, 90, 90, 94, 100. 34, 71, 75, 75, 78, 78, 78, 82, 87, 90, 90, 94. 71, 75, 75, 78, 78, 78, 82, 87, 90, 90, 75, 75, 78, 78, 78, 82, 87, 90. 75, 78, 78, 78, 82, 87. 78, 78, 78, 82, 78, 78. Since we cannot end up with a singular number, add the remaining two numbers and then divide by 2. 78 + 78 = 156. 156 / 2 = 78. Your median is 78. I hope this helps!