Theoretical and Experimental Probability

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 conducted.

Front

What is theoretical probability?

Back

Theoretical probability is the ratio of the number of favorable outcomes to the total number of possible outcomes in a given situation.

Front

How do you calculate experimental probability?

Back

Experimental probability = (Number of times the event occurs) / (Total number of trials) x 100%.

Front

How do you calculate theoretical probability?

Back

Theoretical probability = (Number of favorable outcomes) / (Total number of possible outcomes) x 100%.

Front

What is the theoretical probability of spinning a 2 on a fair spinner with 8 equal sections?

Back

Theoretical probability = 1/8 = 12.5%.

Front

What is the experimental probability of spinning a 5 if it was spun 20 times and landed on 5 four times?

Back

Experimental probability = 4/20 = 20%.

Front

What is the difference between experimental and theoretical probability?

Back

Theoretical probability is what should happen based on calculations, while experimental probability is what actually happens based on experiments.

Front

If a spinner has 10 equal sections, what is the theoretical probability of landing on an even number?

Back

Theoretical probability = 5/10 = 50%.

Front

What is the experimental probability of spinning a 1 if it was spun 30 times and landed on 1 six times?

Back

Experimental probability = 6/30 = 20%.

Front

What is the theoretical probability of spinning a number greater than 5 on a spinner with numbers 1 to 10?

Back

Theoretical probability = 5/10 = 50%.