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Playlist Statistics and Probability Test Questions 17 videos
SAT Math 1.1 Statistics and Probability. In which of the following data sets are the arithmetic mean and the median equal?
SAT Math 4.2 Statistics and Probability 234 Views
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Description:
SAT Math 4.2 Statistics and Probability
- Data Analysis / Data Interpretation
- Product Type / SAT Math
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Problem Solving and Data Analysis / Percentages
Transcript
- 00:02
And who ordered the Shmoopy question? One Shmoopy question comin' your way!
- 00:09
Angel took a poll of her 5th period PE class regarding the amount of homework they have each night.
- 00:15
These were the results:
- 00:16
What percentage of the students said that the amount of homework was just right?
- 00:25
Ok this question is asking us to analyze poll results.
Full Transcript
- 00:30
It’s simple enough.
- 00:31
To find the percentage of the students who said the amount of homework was just right…
- 00:36
…we add the numbers of boys plus the number of girls who thought it was just right…
- 00:40
…and divide that by the total number of students... then multiply by 100, to turn it into a percentage.
- 00:46
Looking at our poll results, there were 4 boys and 2 girls who answered “just right.”
- 00:52
The total number of students can be found by adding 18, 17, 3, 4, 4, and 2. Which comes to 48.
- 01:04
6 over 48 is 1/8…or .125.
- 01:11
Multiply that by 100, and we get our percentage which is 12.5%
- 01:16
And THAT answer… is juuuust right.
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