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Statistics and Probability Videos 134 videos

SAT Math 1.2 Statistics and Probability
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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
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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...

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Counting Principle 1118 Views


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Description:

It's important to have principles. “No stealing” and “not letting anyone infringe on your inalienable rights” are good ones, but we're partial to the counting principle.

Language:
English Language

Transcript

00:04

Counting Principle, a la Shmoop. Dagun-Ra, Lord High Chancellor of the Volcano

00:12

people, is in a pickle.

00:16

It is Dagun-Ra's duty to choose those who will be sacrificed to Mount Lascivious.

00:23

But he's so bad at making decisions. He must choose to sacrifice one of the town's

00:34

goats, Alfred, Bobo or Chewy…

00:40

…one of the town's donkeys, Darius, Eeyore or Fartsy…

00:48

…and one of the town's lawyers, Geoff, Harper, Irving or Jarvis.

00:56

He briefly considers just tossing in all of the lawyers, but he doesn't want to upset

01:08

the Volcano god. How many different combinations does Dagun-Ra

01:13

have to choose from?

01:15

Here are your options: First things first - we need to count up the

01:23

number of options for each category.

01:26

Looks like we're working with three goats…

01:28

…three donkeys…

01:29

…and four lawyers. To find the total number of combinations,

01:33

we would simply multiply those three numbers together.

01:36

Three times three times four equals… 36. Answer "E."

01:50

It takes him a while, but Dagun-Ra finally narrows his list of 36 possibilities down

02:23

to one.

02:26

Into the volcano go Chewy, Fartsy and Jarvis.

02:31

For at least another year, the volcano should have no further need for animal or human sacrifice.

02:45

Or for free legal advice.

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