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CAHSEE Math 5.3 Statistics, Data, and Probability II 174 Views


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Statistics, Data, and Probability II Drill 5 Problem 3. Based on this plot, which of the following statements is the most accurate?

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Transcript

00:03

Here’s your shmoop du jour…

00:05

The salaries of 20 employees and the number

00:07

of years that they worked at their boomerang company are graphed in the following plot. 

00:12

We can’t tell you how excited they are that their graph forms the shape of a boomerang.

00:16

They’re an easily excited bunch.

00:18

Based on this plot, which of the following statements is the most accurate?

00:23

And here are the potential answers:

00:26

OK… this question shows a scatter plot with

00:29

an obvious trend and asks us to, uh… do something with it.

00:34

So we have to just go through the potential answers.

00:36

We have:

00:38

A. “The longer a person works for the company, the higher his/her salary will be.”

00:43

Well, A is kinda true – until about year 5 when everything flat lines.

00:48

We need the BEST answer here so we’re gonna keep reading.

00:51

B. “Every employee is paid approximately the same amount for the first six years.”

00:56

Totally just... wrong. Reject.

00:59

C. “Every employee is paid approximately

01:01

the same amount after having worked at the company for at least six years.”

01:06

This one looks correct – after about year 6, this becomes the people’s republic of

01:10

socialism, more or less.

01:13

D. “A person who has worked at the company

01:16

for 15 years can expect to have a yearly salary of about $100,000.”

01:20

D is just wrong – like… where on earth did they get this one?

01:23

The line flattens at about 80 grand.

01:25

The answer is C.

01:27

As in… “Catch!”

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