The median for the given set of 6 ordered data values is 32.5. 9, 12, 25, _, 41, 48 what is the missing value?

Being that u have a set of data that has an even number of numbers, the median (middle number) would be found by adding the 2 middle numbers and dividing by 2.

ur 2 middle numbers would be 25 and x...and when added, u divide by 2, u will get 32.5...so lets set it up as an equation.

(25 + x) / 2 = 32.5...multiply both sides by 2
25 + x = 32.5 * 2
25 + x = 65
x = 65 - 25
x = 40 <== ur missing number