Probability Math 7 Progress Check Practice

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.

Front

What is the probability of an event that is certain to happen?

Back

The probability of an event that is certain to happen is 1.

Front

What is the probability of an event that is impossible?

Back

The probability of an event that is impossible is 0.

Front

How do you calculate the probability of a single event?

Back

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

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

What does it mean to find P(not A)?

Back

P(not A) is the probability that event A does not occur, calculated as 1 - P(A).

Front

If a coin is flipped, what is the probability of getting heads?

Back

The probability of getting heads when flipping a coin is 1/2.

Front

What is the probability of rolling an even number on a number cube (1-6)?

Back

The probability of rolling an even number (2, 4, or 6) is 3/6 or 1/2.

Front

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

Back

The probability of two independent events A and B occurring is P(A) * P(B).

Front

What is the probability of drawing a blue marble from a jar with 5 blue, 3 green, and 2 red marbles?

Back

The probability of drawing a blue marble is 5/(5+3+2) = 5/10.