Theoretical Probability

Front

What is Theoretical Probability?

Back

Theoretical Probability is what should happen in an ideal situation, calculated based on the possible outcomes.

Front

What is Experimental Probability?

Back

Experimental Probability is what actually happens when an experiment is conducted, calculated based on the number of times an event occurs divided by the total number of trials.

Front

If a spinner has 6 equal sections, 2 of which are green, what is the theoretical probability of landing on green?

Back

Theoretical Probability = Number of favorable outcomes / Total outcomes = 2/6 = 1/3.

Tags

TEKS.MATH.7.6I

Front

If a spinner is spun 60 times and lands on green 9 times, what is the experimental probability of landing on green?

Back

Experimental Probability = Number of times green occurs / Total spins = 9/60 = 3/20.

Tags

TEKS.MATH.7.6C

Front

What is the formula for calculating probability?

Back

Probability = Number of favorable outcomes / Total number of outcomes.

Front

In a bag of jelly beans, if there are 10 red and 15 blue jelly beans, what is the theoretical probability of picking a red jelly bean?

Back

Theoretical Probability = 10/(10+15) = 10/25 = 2/5.

Tags

TEKS.MATH.7.6I

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.

Front

What does it mean if an event has a probability of 1?

Back

It means the event is certain to occur.

Front

If a spinner has 4 sections: 1 red, 1 blue, 1 green, and 1 yellow, what is the theoretical probability of landing on blue?

Back

Theoretical Probability = 1/4.

Front

What is the difference between theoretical and experimental probability?

Back

Theoretical probability is based on expected outcomes, while experimental probability is based on actual results from experiments.