Simple Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.

Front

How do you convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign (%). For example, 0.02 becomes 2%.

Front

What is the probability of getting heads when flipping a fair coin?

Back

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

Front

What is the probability of rolling a number greater than 4 on a single die?

Back

The probability of rolling a number greater than 4 (which are 5 and 6) is 2/6 or 1/3.

Front

What is an experimental probability?

Back

Experimental probability is the probability determined by conducting an experiment and observing the outcomes.

Front

If you roll a die 10 times and get a 3 two times, what is the experimental probability of rolling a 3?

Back

The experimental probability of rolling a 3 is 2/10 or 1/5.

Front

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

Back

The total number of outcomes when rolling a single die is 6.

Front

What is the probability of spinning a color that is not on the spinner?

Back

The probability of spinning a color that is not on the spinner is 0.

Front

If a spinner has 4 equal sections: red, blue, green, and yellow, what is the probability of landing on red?

Back

The probability of landing on red is 1/4.

Front

What is the probability of rolling a 7 on a single die?

Back

The probability of rolling a 7 on a single die is 0, as a die only has numbers 1 through 6.