In the data set below, what are the lower quartile, the median, and the upper quartile?

Question

14445557799
lower quartile =

median =

upper quartile =

Answer 1

To find the lower quartile, median, and upper quartile of the dataset provided (14445557799), first we need to sort the data in ascending order:

1, 4, 4, 4, 5, 5, 7, 7, 9, 9

To find the lower quartile (Q1), we need to find the median of the lower half of the data set: 1, 4, 4, 4, 5

Lower quartile = (4 + 4) / 2 = 4

To find the median (Q2), we need to find the middle number of the data set, which is 5

Median = 5

To find the upper quartile (Q3), we need to find the median of the upper half of the data set: 7, 7, 9, 9

Upper quartile = (7 + 9) / 2 = 8

Therefore, the lower quartile = 4, the median = 5, and the upper quartile = 8.