Question

Determine the mean, median, mode(s), IQR, and range for the data.
3, 8, 6, 6, 4, 6, 9, 9, 12

Answer 1

Mode: 6

Median: 6

Mean: 7

Range: 9

IQR interquartile range: 4

3, 4, 6, 6, 6, 8, 9, 9, 12

Mode: 6

Median: 6

Mean: 3 + 4 + 6 + 6 + 6 + 8 + 9 + 9 + 12 = 63/9 = 7

Range: 12 - 3 = 9

IQR interquatile range: 9 - 5 = 4