00:01
Okay, so we're given two data sets and asked to find the minimum, maximum, and the three quartiles.
00:10
So starting with the male data set here, the minimum and the maximum are easy to identify, since they're just 62 and 78 respectively.
00:21
So i guess in blue, i will write the minimum is 62 and the maximum is 78.
00:32
Similarly, we can see that 68 splits the dataset into two halves.
00:39
That's the median, which means it is automatically the second quartile.
00:45
As for the first and third quartile, you have to use these two formulas.
00:49
N plus one, or n is the number of elements in the set.
00:54
So there are nine elements here, so we would want 10 divided by four, equals 2 .5, which means that we would look to the second and a half.
01:15
Let me scroll up a little bit.
01:17
So we would want whatever value is second and a half.
01:21
And we can see that 64 and 66 are the second and third.
01:27
So halfway between those would be 65.
01:33
That would be the first quartile for the male dataset.
01:36
And as for the third quartile, we have 10 times three quarters.
01:45
So 10 times three quarters equals 74, or i should say, it equals 7 .5.
02:03
So 1, 2, 3, 4, 5, 6, 7 .5.
02:09
So again, halfway between 73 and 75, which is 74...