Chapter 13 Probability Review

Flashcard
•
Mathematics
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a permutation?
Back
A permutation is an arrangement of objects in a specific order. The order matters.
2.
FLASHCARD QUESTION
Front
What is a combination?
Back
A combination is a selection of objects where the order does not matter.
3.
FLASHCARD QUESTION
Front
How do you calculate the number of permutations of n objects taken r at a time?
Back
The formula is P(n, r) = n! / (n - r)!.
4.
FLASHCARD QUESTION
Front
How do you calculate the number of combinations of n objects taken r at a time?
Back
The formula is C(n, r) = n! / [r!(n - r)!].
5.
FLASHCARD QUESTION
Front
What is the total number of outcomes when flipping a coin twice?
Back
There are 4 outcomes: HH, HT, TH, TT.
6.
FLASHCARD QUESTION
Front
What is the probability of an event occurring?
Back
The probability of an event is the number of favorable outcomes divided by the total number of possible outcomes.
7.
FLASHCARD QUESTION
Front
What is the probability that an event does NOT occur?
Back
It is calculated as 1 minus the probability that the event does occur.
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