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Statistics, Data, and Probability 178 Views
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Description:
Statistics, Data, and Probability II: Drill Set 1, Problem 4. Which of the following pie charts correctly represents the data given in the table?
Transcript
- 00:03
Here's your shmoop du jour...
- 00:05
At Hogwarts, there's a raging debate about whether there are more witches or wizards on the premises.
- 00:11
The breakdown of the number of female and male students and faculty members
- 00:14
is shown below in the table.
- 00:16
Which of the following pie charts correctly represents the data given in the table?
Full Transcript
- 00:20
And here are the potential answers...
- 00:28
The question is just asking us to take a percentage of the numbers given.
- 00:31
Let's start with female students.
- 00:33
First of all, we can sum up ALL the witches and wizards to get our total population...
- 00:39
475 + 425 + 35 + 25 equals 960.
- 00:46
475 out of 960 are female students, so we divide to get a percentage.
- 00:53
475 divided by 960 is about 49 percent...
- 00:59
...and there's only one chart that matches up.
- 01:01
We can double-check by running numbers on the male students, female faculty or male faculty...
- 01:07
...but honestly, we already have our answer, and life's too short.
- 01:10
These tests are timed, and you gotta wave your wand when you can.
- 01:13
Our answer is choice A.
- 01:15
As in... "'arry Potta'!"
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