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Statistics and Probability Videos 134 videos
SAT Math: Statistics and Probability Drill 1, Problem 2. If the four largest numbers in the set were doubled, what would happen to the median...
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CAHSEE Math 3.3 Statistics, Data, and Probability II 198 Views
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Description:
Statistics, Data, and Probability II Drill 3 Problem 3. One hundred twenty of those who were asked preferred what sport?
Transcript
- 00:03
Here’s your shmoop du jour...
- 00:05
Lavenia invited some people over to watch sports.
- 00:08
She wasn’t anticipating a turn-out of 400 people though. MAN, she has a lot of friends.
- 00:13
She took a poll that asked all 400 people what their favorite sport to watch on tv was.
- 00:18
The results are displayed in the graph below.
Full Transcript
- 00:23
One hundred twenty of those who were asked preferred… what sport?
- 00:28
And here are the potential answers…
- 00:35
Can we read a pretty colored pie chart? You bet.
- 00:38
The question asks for a percentage – it’s asking ‘what is 120 divided by the total of 400’?
- 00:45
A shame it doesn’t just come out and SAY that. Guess it has transparency issues.
- 00:51
Anyway, when we do the math we get 12 over 40 or 6 over 20 or 3 over 10… which is 0.3.
- 00:57
It's easy to convert this into a percentage.
- 01:00
All we have to do is multiply it by 10 and we see that it’s 30%.
- 01:05
So… which two sports combined give us a total of 30%?
- 01:09
Well, hockey and baseball are both 15%, so the answer is D.
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