ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Statistics and Probability Videos 134 videos

SAT Math 1.2 Statistics and Probability
1060 Views

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...

SAT Math 1.4 Statistics and Probability
380 Views

SAT Math 1.4 Statistics and Probability. If two standard 6-sided dice are rolled, what is the probability that the sum of the dice will be gre...

SAT Math 1.5 Statistics and Probability
358 Views

SAT Math 1.5 Statistics and Probability. If Silas draws one card, then places it in his pocket and draws another, what is the probability that...

See All

CAHSEE Math 1.3 Statistics, Data, and Probability II 169 Views


Share It!


Description:

CAHSEE Math Statistics, Data, and Probability II: Drill Set 1, Problem 3. Based on the following, which of the following statements is true? 

Language:
English Language

Transcript

00:03

Here's a question you can shmoop until the cows come home...

00:06

The graph below shows the time (in hours) three students,

00:09

Aaron, Bob, and Chris, spent each day doing homework over a typical school week.

00:17

Apparently, Chris has decided to take over his father's laundry business.

00:22

Based on the graph, which of the following statements is true?

00:24

And here are the potential answers...

00:31

This question really asks a lot of separate questions...

00:34

...so we have to just go through 'em one by one to get to... the promised land.

00:38

So... A. Homework hours. Who studied their buns off and who... didn't?

00:43

We can add the hours across the week for A B and C in this little table:

00:48

A: 2 4 2 4 3 = 15

00:53

B: 3 3 4 5 2 = 17

00:58

C: 4 4 5 3 1 = 17

01:02

Well, Aaron clearly spent the LEAST time on his homework so A is lookin' good.

01:07

But let's check the other statements to be sure we're not... clueless.

01:11

B.

01:12

Bob spent more time on homework than Chris over the entire week. Well... no. They spent

01:16

an equal amount of time.

01:18

C.

01:19

Chris spent the LEAST amount of time on homework -- nope again -- he spent the same as Bob.

01:24

Finally... D.

01:25

Over the week, the 3 students spent an average of 16 hours doing homework.

01:29

Well, we can take an average by totaling the hours -- 15 plus 17 plus 17 gets us 49.

01:36

Their average is 16 and a third -- not 16 so... D is nay as well.

01:41

And A it is.

Related Videos

CAHSEE Math 5.3 Algebra and Functions
2033 Views

CAHSEE Math: Algebra and Functions Drill 5, Problem 3. Solve the equation.

SAT Math 6.1 Geometry and Measurement
3974 Views

SAT Math 6.1 Geometry and Measurement

CAHSEE Math 3.4 Statistics, Data, and Probability I
363 Views

Statistics, Data, and Probability I: Drill Set 3, Problem 4. How many different avatars can be created based on the given options?

CAHSEE Math 3.2 Statistics, Data, and Probability II
224 Views

Statistics, Data, and Probability II Drill 3 Problem 2. Which two sports together make up for the preferences of more than half of all those w...

CAHSEE Math 3.3 Statistics, Data, and Probability II
198 Views

Statistics, Data, and Probability II Drill 3 Problem 3. One hundred twenty of those who were asked preferred what sport?