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Probability Videos 45 videos

Geometric Probability
3400 Views

Unfortunately, we cannot use geometric probability to determine the chances of you enjoying this video; it can only be used with shapes. Unless you...

ACT Math 3.2 Pre-Algebra
436 Views

ACT Math: Pre-Algebra Drill 3, Problem 2. What is the probability that a red queen will be drawn?

SAT Math 1.1 Numbers and Operations
280 Views

SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?

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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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