Math 2 - Probability Review

Front

How many outfits can be created with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?

Back

80 outfits (calculated as 5 * 8 * 2 = 80).

Front

Does the outcome of the first marble drawn affect the outcome of the second when the first marble is replaced?

Back

No, the events are independent.

Tags

CCSS.HSS.CP.A.5

Front

What is the probability of selecting a green or red marble from a bag containing 9 green, 5 yellow, and 6 red marbles?

Back

3/4 (The total number of favorable outcomes is 15, and the total number of marbles is 20, so P(green or red) = (9+6)/20 = 15/20 = 3/4).

Tags

CCSS.HSS.CP.B.7

Front

Are the events of drawing a red marble and then a blue marble without replacement dependent or independent?

Back

Dependent, because the outcome of the first draw affects the second.

Tags

CCSS.HSS.CP.A.5

Front

What is the probability that a randomly selected student got an A or B in Mrs. Hardcase’s English class if 35 out of 100 students received an A or B?

Back

35/100.

Tags

CCSS.7.SP.C.7B

Front

Define 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 the formula for calculating the probability of an event?

Back

P(Event) = Number of favorable outcomes / Total number of outcomes.

Tags

CCSS.7.SP.C.7A

Front

What is the difference between dependent and independent events?

Back

Dependent events are events where the outcome of one affects the outcome of another; independent events are events where the outcome of one does not affect the outcome of another.

Tags

CCSS.HSS.CP.A.5

Front

If a bag contains 3 red and 2 blue marbles, what is the probability of drawing a red marble?

Back

3/5 (3 favorable outcomes out of 5 total outcomes).

Tags

CCSS.7.SP.C.7B

Front

What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables.

Tags

CCSS.8.SP.A.4