Probability Review

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not happen.

Front

What does it mean if an event has a probability of 1?

Back

It means the event is certain and will definitely happen.

Front

How do you express probability as a fraction?

Back

Probability can be expressed as the number of favorable outcomes divided by the total number of possible outcomes.

Front

If a spinner has 8 equal sections, what is the probability of landing on one specific section?

Back

The probability is 1/8.

Front

What is the probability of rolling a 3 on a standard six-sided die?

Back

The probability is 1/6.

Front

If a jar has 4 red, 3 blue, and 5 green marbles, what is the probability of picking a blue marble?

Back

The probability is 3/12 or 1/4.

Front

What does 'equally likely' mean in probability?

Back

It means that all outcomes have the same chance of occurring.

Front

If you have a bag with 10 marbles of different colors, what is the probability of picking a marble that is not red if there are 2 red marbles?

Back

The probability is 8/10 or 4/5.

Front

What is the probability of drawing a card that is a heart from a standard deck of 52 cards?

Back

The probability is 13/52 or 1/4.