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 6.2 Statistics, Data, and Probability I 193 Views


Share It!


Description:

Statistics, Data, and Probability I: Drill Set 6, Problem 2. What is the probability of the spinner landing on white on the next spin?

Language:
English Language

Transcript

00:03

Here's a shmoopy question for you...

00:06

Bonnie has the hardest time picking out a

00:08

color for her fingernails each week...

00:10

...so she uses a fair spinner to make all

00:12

her decisions for her.

00:14

Her spinner has landed on either the red or

00:17

blue regions on each of its last ten spins.

00:20

Her fingers are starting to get so bored.

00:22

What is the probability of the spinner landing on white on the next spin?

00:27

And here are the potential answers:

00:32

OK, seriously? Like... if it were a full moon

00:35

AND the groundhog saw its shadow, would that change the outcome of the next spin of the

00:39

wheel?

00:40

First of all, we have to wonder what the groundhog was doing out so late anyway.

00:44

Has it not heard of "curfew?"

00:48

This is purely a question about dependence

00:50

-- that is, any and every spin is independent of every other.

00:56

It doesn't matter what the last 982 spins were, assuming that the spinner was indeed

01:01

fair and not jimmied to mess with true random chance.

01:04

So the answer is 1 in 4 -- just as in any other spin.

01:07

Our answer is C.

01:09

Unfortunately, Bonnie rolls red yet again.

01:12

And even more unfortunately, she can't figure out where her red fingernail polish went...

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 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...

SAT Math 2.5 Statistics and Probability
241 Views

SAT Math 2.5 Statistics and Probability