9.2 Experimental vs Theoretical

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

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event occurring based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

How do you calculate experimental probability?

Back

Experimental probability = (Number of times the event occurs) / (Total number of trials)

Front

What is the theoretical probability of rolling an even number on a number cube?

Back

The theoretical probability of rolling an even number (2, 4, or 6) is 3/6 or 1/2.

Front

If a number cube is rolled 36 times, how many times would you expect to roll a 4?

Back

You would expect to roll a 4 about 6 times, since the theoretical probability of rolling a 4 is 1/6.

Front

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

Back

There are 6 possible outcomes when rolling a number cube: 1, 2, 3, 4, 5, or 6.

Front

What is the experimental probability of rolling a 3 if it was rolled 4 times out of 25 rolls?

Back

The experimental probability of rolling a 3 is 4/25.

Front

What is the formula for calculating theoretical probability?

Back

Theoretical probability = (Number of favorable outcomes) / (Total number of possible outcomes)

Front

If you roll a number cube 100 times, how many times would you expect to roll a number greater than 4?

Back

You would expect to roll a number greater than 4 (5 or 6) about 33 times, since the theoretical probability is 2/6.

Front

What is the experimental probability of rolling an odd number if it was rolled 30 times and resulted in 18 odd numbers?

Back

The experimental probability of rolling an odd number is 18/30 or 3/5.