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AP Statistics: Exploring Data Drill 1, Problem 2. Which of the following is the best way to display this type of data?
AP Statistics: Exploring Data Drill 1, Problem 5. Which pieces of information would we need to create this graph?
AP Statistics: Exploring Data Drill 2, Problem 3. Which set of points, if put in a scatterplot, would show us a positive correlation?
AP Statistics 3.4 Exploring Data 6 Views
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Description:
AP Statistics 3.4 Exploring Data. Which of the following does not help us measure the spread of a set of data?
Transcript
- 00:04
And here's your shmoop du jour brought to you by a range like
- 00:08
Bruno Mars you may want to be careful if is too hot which of the following does [Bruno Mars singing and flames appear from his face]
- 00:13
not help us measure the spread of a set of data and here are the potential answers....
- 00:20
All right hey data feel free to spread out make yourself
- 00:24
comfortable well not that comfortable ..Anyway this problem gives
Full Transcript
- 00:28
us five options and wants to know which won't help us determine the spread of [Man spreading butter onto a piece of bread]
- 00:33
data so one of them won't give us any indication of the highs and lows of a
- 00:37
set of values and we want to nail the guilty party...Well let's take a look at [Graph with lots of data plots in an interrogation room]
- 00:42
interquartile range first of all well the word itself should be a pretty good
- 00:46
clue inter quartile ie this measurement will tell us something about about
- 00:50
the values of between two quartiles in other words something about the spread anyone else [A restaurant in a and country crock appears]
- 00:55
suddenly having a craving for Country Crock... Okay next up standard
- 01:00
deviation while this tells us how widely the data is centered around the mean [Data circled around the mean]
- 01:06
which again gives us an idea of the spread of data points so we'll deviate away
- 01:11
from this one and keep looking option C is q1 and q3 otherwise known as the
- 01:16
first and third quartiles, well knowing just one of the two wouldn't do much for [Woman and man asking who he is]
- 01:20
us but as soon as we know the value of two distinct points we suddenly have
- 01:24
a sense of how the data is being divi'd out meaning we can nix this one as well
- 01:28
E; the range was probably the most obviously bad answer.. A range is clearly [Biker with the letter E on the front of his body]
- 01:34
going to tell us something about the range of data values... That's its name
- 01:39
range... We have to assume they weren't being tricky when they coined the term [Two men stood with a graph]
- 01:43
otherwise it would be like naming a pet duck, Whiskers you have to be a real [Duck on the grass with a name label Whiskers]
- 01:47
quack to do something like that so yeah it ain't range..Leaving us with answer
- 01:51
D median; well yeah a median is only a single point the middle value of an
- 01:56
entire set, it tells us nothing about the spread of data no more than the age of a [Children stood together on a front lawn]
- 02:01
middle child tells us anything about the ages of his older and younger brothers
- 02:04
although by looks of it, he's getting it from both sides. So D it is, now if you'll [boy kicked by older brother]
- 02:09
excuse us we're going to run before that uptown funk gives it to us we're not
- 02:13
sure what it is, but well we're positive we don't want to know...[Bruno Mars singing and a girl performing ballet]
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