In the data set below, what are the lower quartile, the median, and the upper quartile?
14445557799
lower quartile =
median =
upper quartile =
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.