Simple and Compound Probability

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Tags

CCSS.7.SP.C.5

Front

What is a simple probability?

Back

Simple probability refers to the probability of a single event occurring.

Tags

CCSS.7.SP.C.7A

Front

What is a compound probability?

Back

Compound probability refers to the probability of two or more events occurring together.

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

Front

How do you calculate the probability of a single event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of possible outcomes).

Tags

CCSS.7.SP.C.7A

Front

What is the probability of rolling a perfect square on a standard die?

Back

There are 3 perfect squares (1, 4, 9) on a die, so P(perfect square) = 3/6 = 1/2.

Tags

CCSS.7.SP.C.7B

Front

If a die is rolled twice, what is the probability of both rolls being perfect squares?

Back

P(both perfect squares) = (1/2) * (1/2) = 1/4.

Front

What is the probability of pulling out a vowel from a bag of 26 letters?

Back

There are 5 vowels (A, E, I, O, U), so P(vowel) = 5/26.

Tags

CCSS.7.SP.C.7B

Front

What is the probability of not rolling a 6 on a die?

Back

P(not 6) = 5/6.

Front

How do you find the probability of an event not occurring?

Back

P(not event) = 1 - P(event).

Tags

CCSS.7.SP.C.5

Front

In a box with 3 limes, 5 grapes, and 2 oranges, what is P(NOT lime)?

Back

P(NOT lime) = (5 grapes + 2 oranges) / 10 total fruits = 7/10.