ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Pre-Algebra Videos 217 videos

Compound Interest
45304 Views

Who wants to be a millionaire? In this video, learn about compound interest, interest rates, and the compound interest formula. You'll be buying th...

ACT Math 5.2 Pre-Algebra
1939 Views

ACT Math: Pre-Algebra Drill 5, Problem 2. If a and b are prime numbers, how many factors does ab have?

SAT Math 4.3 Numbers and Operations
2174 Views

SAT Math 4.3 Numbers and Operations

See All

SAT Math 4.2 Statistics and Probability 234 Views


Share It!


Description:

SAT Math 4.2 Statistics and Probability

Language:
English Language

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.

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.

Related Videos

SAT Math 2.1 Geometry and Measurement
2779 Views

SAT Math 2.1 Geometry and Measurement. What is the measure of angle z in terms of x and y?

SAT Math 9.4 Algebra and Functions
1300 Views

SAT Math 9.4 Algebra and Functions

SAT Math 9.2 Algebra and Functions
377 Views

SAT Math 9.2 Algebra and Functions

SAT Math: Identifying an Equation for the Average of Two Percentages
23 Views

In 2014, the unemployment rate of one county in California was 7%. In another county, the unemployment rate was 11%. Which of the following express...

SAT Math: Which Equation Represents Profit?
13 Views

Angela is making cookies for a bake sale. She expects each batch of her cookies to sell for $40. It costs her $10 to make one batch of cookies, and...