Question

What is the median of the data set?

Answer 1

Write all number from least to greatest.

52 64 67 68 75 75 78 78 88 90

In the middle 75 and 75 were left. Median =(75+75)/2 = 75

Answer : 75.

Answer 2

To find the median of a data set order all the numbers from least to greatest, then find the number in the middle. If there are two numbers in the middle find the mean of the two numbers.

90 52 78 64 67 88 68 75 75 78 ← given

52 64 67 68 75 75 78 78 88 90 ← ordered l to g

75 and 75 are the two numbers in the middle, and since they are the same that means 75 is our median.

D) 75 is your answer.