Mathematics

Question

What is the interquartile range of the data set below?

Growth in feet of oak trees: 68,80,73,90,120,94,76,112,101,94,72

(1) 22                (2) 28             (3) 52          (4) 73

1 Answer

  • 68,80,73,90,120,94,76,112,101,94,72 --->
    68, 72, 73, 76, 80, 90, 94, 94, 101, 112, 120

    Median = 90
    Lower Median = 73
    Upper Median = 101

    IQR = 101 - 73
    IQR = 28