In the data set below, what are the lower quartile, the median, and the upper quartile?
12255577889
lower quartile =
median =
upper quartile =
To find the lower quartile, median, and upper quartile, we first need to rearrange the numbers in ascending order:
1, 2, 5, 5, 7, 7, 8, 8, 8, 9
The lower quartile is the median of the lower half of the data set, which in this case is (1, 2, 5, 5, 7). The lower quartile is the middle number in this subset, which is 5.
The median is the middle value of the entire data set, which in this case is 7.
The upper quartile is the median of the upper half of the data set, which in this case is (8, 8, 8, 9). The upper quartile is the middle number in this subset, which is 8.
Therefore, the lower quartile is 5, the median is 7, and the upper quartile is 8.