00:01
Hey there, welcome to numerate.
00:03
So we are asked to give the five number summary over here, including the quartiles.
00:10
So let's start by providing our minimum value.
00:15
So at least, greatest value here is 13, and we have quartile 1, in which we're going to utilize the percentile rank equation.
00:27
So let's do percentile rank.
00:31
We know our percentile rank here equals for the 25th percentile because that connects to quartile 1, 0 .25 times our sample size plus 1.
00:47
So we hit determine what our sample size here.
00:53
So we have 1, 2, 3, 1, 2, 3, 4, 5, 6, 7, 8, 9 times 3 is 27.
01:01
So this should equal 27 values, but let me double check.
01:05
369, 12, 15, 18, 21, 24, 27.
01:14
Yep.
01:17
27 plus 1, which is 28, giving us a percentile rank of 0 .25 times 28 is 7.
01:26
So the 7th term, which corresponds to a quartile 1 of 20.
01:33
Okay...