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CAHSEE Math 4.1 Statistics, Data, and Probability II 227 Views

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Description:

Statistics, Data, and Probability II Drill 4 Problem 1. Which of the following scatter plots represents a negative correlation between the data sets?

Language:

English Language

Subjects:

Tags:

Statistics, Data Analysis, and Probability 7 / Scatterplots

Common Core Standards:

Transcript

00:03
Here's your shmoop du jour.
00:05
Which of the following scatter plots represent a negative correlation between the data sets?
00:12
And here are the potential answers...
00:17
Whoa. Negative corre-what?
00:20
Ok, five dollar word alert. A correlation occurs when something is similar to something else.

00:26
Like… there’s a correlation between the TV viewing audience of Honey Boo Boo…
00:30
…and the number of antidepressants sold daily in the US.
00:35
So when a correlation is NEGATIVE it’s basically just saying that they’re NOT like each other.
00:40
In plot A, we can see that as engine size increases…
00:44
…horsepower also increases… so the two are POSITIVELY correlated with one another.
00:50
B is just the opposite… and THAT’s the one we’re looking for.
00:53
As golfing experience increases, golf scores go down.
00:59
So our answer is B.
01:01
As in, “Bogey.”
Full Transcript