7th Grade Probability Review

Front

What is experimental probability?

Back

Experimental probability is the ratio of the number of times an event occurs to the total number of trials or experiments conducted.

Front

How do you calculate experimental probability?

Back

To calculate experimental probability, use the formula: Experimental Probability = (Number of favorable outcomes) / (Total number of trials).

Front

If a die is rolled 50 times and lands on a six 37 times, what is the experimental probability of rolling a six?

Back

Front

What is the probability of rolling a number greater than 2 on a standard die?

Back

Front

In a bag of 8 marbles (3 red and 5 blue), what is the probability of picking a red marble?

Back

Front

If Tom solved 9 out of 15 practice questions correctly, how many questions can he expect to solve correctly on a 35-question test?

Back

Tom can expect to solve 21 questions correctly on the actual test.

Front

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

Back

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

Front

What is the probability of not rolling a six on a die?

Back

Front

What is the difference between theoretical probability and experimental probability?

Back

Theoretical probability is based on the expected outcomes in a perfect world, while experimental probability is based on actual results from experiments.

Front

If an event has a probability of 0, what does that mean?

Back

A probability of 0 means that the event is impossible and will not occur.