Theoretical Probability

Front

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event happening 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 the probability of an event?

Back

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

Front

If a bag contains 5 quarters, 2 dimes, and 4 pennies, what is the total number of coins?

Back

Total number of coins = 5 + 2 + 4 = 11.

Front

What is the probability of picking a dime from a bag with 11 coins?

Back

Probability of picking a dime = 2/11.

Front

What is the probability of NOT landing on yellow if a spinner has 8 equal sections and 1 is yellow?

Back

Probability of NOT landing on yellow = 7/8.

Front

What is the probability of flipping a coin and getting tails?

Back

Probability of getting tails = 1/2.

Front

If you roll a fair number cube (1-6), what is the probability of rolling a 3?

Back

Probability of rolling a 3 = 1/6.

Front

What is the probability of choosing either a black or white marble from a bag containing 3 black, 2 white, and 5 red marbles?

Back

Probability of choosing black or white = (3 + 2) / 10 = 5/10 = 1/2.

Front

What does it mean if an event is certain?

Back

An event is certain if it is guaranteed to happen, with a probability of 1.

Front

What does it mean if an event is impossible?

Back

An event is impossible if it cannot happen, with a probability of 0.