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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?
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.
Full Transcript
- 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.”
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