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This video covers how to set up a stem and leaf plot and use it to find the mean and median of a set of numbers.
CAHSEE Math 5.4 Statistics, Data, and Probability II 180 Views
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Description:
Statistics, Data, and Probability II Drill 5, Problem 4. Based on this plot, a person making $80,000 a year has been working at the company for how many years?
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.
- 00:11
Their love of boomerangs keeps them coming back each day.
- 00:15
That… and the phenomenon of gyroscopic precession…
Full Transcript
- 00:19
Based on this plot, a person making $80,000
- 00:21
a year has been working at the company for how many years?
- 00:25
And here are the potential answers...
- 00:29
OK, so this question asks us to read a scatter plot. Well, it certainly isn’t… pointless…
- 00:35
So… let’s find the 80 grand line – it’s here.
- 00:38
Scan to the right until we hit those red zit thingies. We hit ‘em about here at the Oxy 20 gap.
- 00:43
Only problem is… there isn’t a single spot at which our dots cross this mark.
- 00:48
Once an employee starts making $80,000 a year, their salary tends to… plateau.
- 00:53
So frankly… we really can’t determine how long someone’s been boomeranging it
- 00:57
up when they’re bringing home 80k a year.
- 01:00
Answer D. As in, “Dedication.”
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