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.

Front

What is the theoretical probability of an event?

Back

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

Front

What is experimental probability?

Back

Experimental probability is determined by conducting an experiment and calculating the ratio of the number of times an event occurs to the total number of trials.

Front

How do you calculate the probability of choosing a letter from a word?

Back

Count the number of times the letter appears and divide by the total number of letters in the word.

Front

What is the probability of rolling a number greater than 6 on a single die?

Back

0, because a standard die only has numbers 1 through 6.

Front

If a spinner is divided into 8 equal parts, what is the probability of landing on one specific part?

Back

1/8, since there is one favorable outcome out of eight possible outcomes.

Front

What is the probability of an event that cannot happen?

Back

0, because it is impossible for that event to occur.

Front

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

Back

1, because it is guaranteed that the event will occur.

Front

If a box contains 5 red marbles and 5 blue marbles, what is the probability of picking a red marble?

Back

1/2, since there are 5 favorable outcomes out of 10 total outcomes.

Front

What is the formula for calculating probability?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes).