Probability Review 8

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

How do you calculate the probability of an event?

Back

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

Tags

CCSS.7.SP.C.7A

Front

What is a favorable outcome in probability?

Back

A favorable outcome is the result of an event that we are interested in measuring the probability for.

Front

What is the total number of M & M's in the bag if Red - 6, Green - 5, Blue - 4, Orange - 3, Yellow - 2, Brown - 1?

Back

Total = 6 + 5 + 4 + 3 + 2 + 1 = 21.

Tags

CCSS.1.NBT.A.1

Front

What is the probability of picking a Yellow and Brown M & M from the bag?

Back

Probability = (Number of Yellow M & M's * Number of Brown M & M's) / (Total M & M's)^2 = (2 * 1) / (21^2) = 2/441.

Front

What is the probability of picking a Green and Brown M & M from the bag?

Back

Probability = (Number of Green M & M's * Number of Brown M & M's) / (Total M & M's)^2 = (5 * 1) / (21^2) = 5/441.

Front

What is the probability of picking a Blue and Yellow M & M from the bag?

Back

Probability = (Number of Blue M & M's * Number of Yellow M & M's) / (Total M & M's)^2 = (4 * 2) / (21^2) = 8/441.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.

Front

What is the total number of outcomes when picking 2 M & M's from a bag of 21?

Back

Total outcomes = 21 * 21 = 441.

Front

What is the probability of picking an Orange and Yellow M & M from the bag?

Back

Probability = (Number of Orange M & M's * Number of Yellow M & M's) / (Total M & M's)^2 = (3 * 2) / (21^2) = 6/441 = 2/147.