00:01
The survey of major universities asked what percentage of incoming freshmen usually graduate on time in four years.
00:07
Use the summary statistics given to answer the questions that follow.
00:12
For a, would you describe this distribution as symmetric or skewed? and i would say skewed because the median of 67 .78 is a lot closer to the 75th percentile than it is the 25th percentile.
00:34
74 to 758.
00:50
So not centered for part b.
00:57
Are there any outliers? explain.
01:03
The minimum.
01:07
So if we take the inner quartile range, 73 .88, i'll leave that for my answer.
01:22
So the inner quartile range of 73 .88 minus 58 .06, which is 15 .8.
01:34
And 1 .5 times the inter quartile range is 23 .73 and so if we subtract 23 .73 from the 25th, 58 .06 minus 23 .73 is 34 .33 which is smaller than the minimum so no outliers on that side.
01:59
And if we add 23 .73 to the 75th percentile, so 33 .88, we get 97 .61, which is higher.
02:08
Than the maximum of 88, so no outliers.
02:15
Create a box plot of this data.
02:18
I'll just kind of freehand it here.
02:21
Let's see...