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AP Statistics 2.1 Exploring Data. How does this change affect the mean, standard deviation, and IQR?
AP Statistics 5.1 Exploring Data 37 Views
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AP Statistics 5.1 Exploring Data. What does this information tell us about the data?
Transcript
- 00:04
And here's your shmoop du' jour brought to you by the state of
- 00:06
Maine. Where every street is a maine street..we drew two box plots to compare [Car appears and beeps on main street]
- 00:13
the amount of time spent outdoors in the summer for high school students in Maine
- 00:16
versus high school students in florida. The box for Maine is fairly small but the width for
- 00:21
Florida is quite large about double the size of Maine's box.. What is this
Full Transcript
- 00:25
information tell us about the data and here's potential answers [mumbling]
- 00:31
All right, let's be real Maine isn't one of the top party states, there [Tumbleweed rolls through Maine Street]
- 00:37
aren't a heck of a lot of fraternities that closed up shop during spring break
- 00:39
and hightail it to Augusta. That said summers in Maine aren't awful they're
- 00:44
just not as popular as Florida's but er, what is the wider box plot for Florida [Box plot for Florida students]
- 00:49
tell us exactly does it tell us that A students in Maine spend less time
- 00:53
outside than those in Florida well that may be true we can't tell for sure with [Boy with his arms up confused]
- 00:58
the information we've got the box plots width doesn't tell us anything about the
- 01:02
amount of time it's just given us an idea of the range of data although if [Lots of big data signs piled on to each other]
- 01:07
you're from Florida we wouldn't be surprised if you got that wrong. got [two guys on a beach in Florida]
- 01:10
a lot of partying to do. What about B students in Florida spend less time
- 01:14
outside than those in Maine certainly not case in point is the median amount
- 01:19
of time spent outdoors higher in Florida no clue we're not given any actual [Answer D with a big red cross through]
- 01:23
numbers here so there's no way to calculate for the median which by the
- 01:27
way is something most older Florida drivers have no problem driving over [old driver driving slow in Florida]
- 01:32
grandparents there.. Okay, what about E are there more outliers in the Florida data well
- 01:38
there might be but that's not something we know simply by being told the width [Box width of Florida students]
- 01:42
of its box is bigger maybe it's just moving and needs to transport it's rock [Old man transporting a rock]
- 01:46
collection well snap the answer here is C; there's more variation in the
- 01:51
amount of time spent outdoors for those in Florida than for those in Maine. That's
- 01:56
what the width of the box tells us that there's a larger spread in the data so
- 02:00
C it is. If you want to know a real party state though, check out Iowa it's [Man on a DJ set at a club]
- 02:05
amazing what a good time you can have in cornfield with just the right lighting [People partying with colorful lights in a cornfield]
- 02:09
and music
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