Lower Quartile Formula. Third quartile q3 3 n 1 4 th term also known as the upper quartile. Second quartile q2 n 1 2 th term.
Here the average needs to be taken which is of 2 nd and 3 rd terms which are 45 and 50 and the average formula of same is 45 50 2 47 50. Average of 7th and 8th terms. 19 20 21 23 23 24 25 27 31.
The third quartile of the 75th percentile q3 is given as.
10 1 11 q1 will be. It can be found by finding the median of the lower half of the data. Q1 1 4 n 1 which tells you what term of the data set represents the lower quartile. The second quartile or the 50th percentile or the median is given as.
