Question

The median of the data set is 81. What number is missing?

82, 87, _, 77, 70, 80, 88

Answer 1

Median is the middle number.
Rearrange the numbers to smallest to biggest.
70, 77, 80, _, 82, 87, 88
If the median of the data set is 81 the middle number needs to be 81.
So the missing number is 81.
70, 77, 80, 81, 82, 87, 88

Answer 2

it is 81 because well first you order the numbers from lowest to greatest then start crossing a number off from each side of the numbers until you get a equal amount crossed in each side there will be one number left that’s not crossed off and it will be 81