75.33 recurring.
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The [mean] average of 76 and 100 = (76 + 100) ÷ 2 = 88.
When they ask for the 'mean' they are really asking for the average of all those numbers. All you have to do is add those up: 76+54+92+88+76+88+75+93+92+68+88+76+76+88+80+70+88+72= 1440 And then divide by how many numbers we added up. In this case, we added up 18 different numbers. So: 1440 / 18 = 80 80 is your 'mean' or average number.
76
The mean of the data is 80.
88 appears more than any other number, so it is the mode.