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CAHSEE Math 5.1 Statistics, Data, and Probability II 168 Views


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Description:

Statistics, Data, and Probability II Drill 5 Problem 1. Based on the data, a student who had missed 10 days of school can expect his GPA to be about what?

Language:
English Language

Transcript

00:03

Here’s a question you can really shmoop to…

00:05

Edgar has made a shocking, controversial claim

00:08

– that more time spent in school means better grades. Wow. Really going out on a limb there, eh, Eddie?

00:14

He conducted a survey asking students about

00:16

the number of days that they were absent in a semester, and their semester GPAs.

00:21

The results are shown in the plot below.  Based on this, a student who had missed 10

00:26

days of school can expect his GPA to be about… what?

00:30

And here are the potential answers...

00:39

The data isn’t all that surprising.

00:41

Huck Finn, king of the hookey-players, wasn’t exactly valedictorian material.

00:46

So a kid who has missed 10 days – right here on the x axis - would expect a GPA of

00:50

about 2.0 if we draw the line right up here into this… red dot cloud of confusion.

00:59

So… our answer is B.

01:00

Which was, incidentally, the best score Huck ever got on a report card.

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