00:01
Hello students, let's do this question.
00:03
Here, the discrete data of 40 students are given and we have to find the value of p56.
00:14
P 56 is nothing but 56th percentile.
00:19
So we know that the formula for percentile is equals to p .i.
00:27
Is equals to sides of i in into n plus 1 by 100th observation and we know that the percentile divides the data into 100 equal parts.
00:45
So here for finding this percentile, the first thing is we have to arrange our observations in ascending order, that is the 40 observations are 30, 35, 43, 44, 47.
01:05
48, 54, 55, 56, 57, 59, 62, 63, 65, 65, 66, 66, 68, 69, 79, 71, 72, 72, 73, 73, 75, 67, 71, 78, 77, then 78, 78, 78, 78.
01:37
78, 89, 801, 81, 82, 83, 85, then 89, 92, 93, 97 and 98...