00:01
In this problem, we have been given the minimum and maximum data entries on the number of classes, and we need to find the class width, the lower class limits, and the upper class limits.
00:09
So first of all, consider the class width.
00:14
For this, first of all, we're going to divide the range by the number of classes, and the range is the maximum value minus the minimum value.
00:22
Now, the maximum value is given to be 94, the minimum value is given to be 13, and the number of classes is 7.
00:29
If we calculate this, we'll end up with 81 by 7, which is approximately 11 .57.
00:36
Now, what we're going to do is we're going to round this number up to the nearest whole number, and if we round 11 .57 up to the nearest whole number, we're going to end up with 12.
00:46
So this is our class width.
00:48
It is 12.
00:50
Next, we need to determine the lower class limit.
00:53
So the first lower class limit will be the minimum value 13.
00:56
And to find the other lower class limits, we're just going to end.
00:59
Add the class width successively.
01:02
So 13 plus 12, that's 25.
01:04
25 plus 12 is 37.
01:06
37 plus 12 is 49...