ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos

CAHSEE Math 4.5 Statistics, Data, and Probability I 197 Views


Share It!


Description:

Statistics, Data, and Probability I: Drill Set 4, Problem 5. If one jellybean is chosen at random, what is the probability that it is watermelon flavored?

Language:
English Language

Transcript

00:03

Here's a shmoopy question for you...

00:05

A bag of jellybeans includes the following:

00:08

If one jellybean is chosen at random, what is the probability that it is a watermelon flavored jellybean?

00:14

And here are the potential answers...

00:19

Ok, so what's this question really asking?

00:21

Well, it's clearly a probability question

00:24

...where we just know that the answer is going to be some small number of things out of some

00:28

larger number of things. And in this case, uh... that's the case.

00:31

The problem is asking for a simple, one step probability quotient --

00:37

we'll choose one jellybean of a certain type out of all the total available jellybeans.

00:43

The question tells us that there are 8 watermelon beans -- so again that red light should go

00:47

off that 8 is going to be in the numerator.

00:50

The denominator is going to be the sum total of all of our choices.

00:54

And it'd be really mean but totally fair if they threw in curveballs here by giving

00:58

us random facts that don't matter -- like, instead of them all being jellybeans...

01:03

...there were 5 lima beans, 3 pinto beans...

01:06

We have to make sure to throw those out because we are ONLY dealing with jelly beans here.

01:12

And the answer is pretty straightforward -- we have a total of 6 plus 10 plus 12 plus 8 or

01:16

a total of 36 jellybeans So the odds of picking a watermelon jellybean

01:21

out of ALL jellybeans is 8 over 36... ...which simplifies to 2 over 9.

01:26

So our answer is B.

01:27

You know what... maybe we'll just pass on dessert.

Up Next

CAHSEE Math 5.3 Algebra and Functions
2032 Views

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

Related Videos

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?