Probability

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 rolling a 5 or a number greater than 3 on a die?

Back

The probability is 2/3.

Front

How do you calculate the theoretical probability of an event?

Back

Theoretical probability is calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the theoretical probability of pulling a red marble from a bag with 3 red, 2 blue, and 4 yellow marbles?

Back

The probability is 1/3.

Front

How do you convert a decimal to a percent?

Back

Multiply the decimal by 100 and add a percent sign.

Front

What is 0.02 as a percent?

Back

2%.

Front

What does P(A ∪ B) represent in probability?

Back

P(A ∪ B) represents the probability that either event A or event B occurs.

Front

What is the probability of spinning green if the spinner has 4 equal sections: 1 red, 1 blue, 1 green, and 1 yellow?

Back

The probability is 1/4.

Front

What is the total number of outcomes when rolling a die?

Back

There are 6 possible outcomes when rolling a die.

Front

If a bag contains 9 marbles (3 red, 2 blue, 4 yellow), what is the probability of pulling a blue marble?

Back

The probability is 2/9.