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Probability Review

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Mathematics

7th Grade

Used 19+ times

Probability Review
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15 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

If Bag A has 9 red marbles and 3 green marbles, what is the probability of drawing a green marble?

1/3

1/4

1/2

3/10

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What are dependent events?

Events that occur independently of each other.

Events where the outcome of one event affects the outcome of another.

Events that cannot happen at the same time.

Events that are completely random.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

P(not A) = P(A) - 1

P(not A) = 1 + P(A)

P(not A) = 1 - P(A)

P(not A) = P(A) / 1

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

How do you calculate the probability of two independent events occurring?

Add the probabilities of each event: P(A or B) = P(A) + P(B).

Multiply the probabilities of each event: P(A and B) = P(A) * P(B).

Subtract the probabilities of each event: P(A and B) = P(A) - P(B).

Divide the probabilities of each event: P(A and B) = P(A) / P(B).

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is probability?

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

A method to predict future events based on past occurrences.

A statistical tool used to analyze data sets.

A way to ensure that events will happen with certainty.

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is a favorable outcome?

An outcome that is considered unsuccessful for the event being measured.

An outcome that is neutral and has no impact on the event being measured.

An outcome that is considered successful for the event being measured.

An outcome that is always positive regardless of the event being measured.

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What does it mean for events to be mutually exclusive?

Mutually exclusive events can occur at the same time.

Mutually exclusive events are independent of each other.

Mutually exclusive events cannot occur at the same time; the occurrence of one event excludes the possibility of the other.

Mutually exclusive events are events that always happen together.

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