To find the lower quartile, median, and upper quartile, we first need to arrange the data set in ascending order:
1, 2, 4, 5, 4, 7, 9, 4
For an odd number of values in the data set, the median is the middle value, which is 5.
The lower quartile (Q1) is the median of the data set when only considering the values to the left of the overall median.
Lower half: 1, 2, 4, 4
Lower quartile (Q1) = (2 + 4) / 2 = 3
The upper quartile (Q3) is the median of the data set when only considering the values to the right of the overall median.
Upper half: 4, 7, 9, 4
Upper quartile (Q3) = (7 + 9) / 2 = 8
So, the lower quartile is 3, the median is 5, and the upper quartile is 8.
In the data set below, what are the lower quartile, the median, and the upper quartile?
142840425794
lower quartile =
median =
upper quartile =
1 answer
1 answer