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.

Tags

CCSS.7.SP.C.7A

Front

What is the probability of rolling a number greater than 2 on a regular number cube?

Back

4/6 or 2/3, since the favorable outcomes are 3, 4, 5, and 6.

Tags

CCSS.7.SP.C.7B

Front

If a spinner has 2 red sections out of 4 total sections, what is the theoretical probability of landing on red?

Back

1/2, because there are 2 favorable outcomes (red) out of 4 possible outcomes.

Tags

CCSS.7.SP.C.7B

Front

What is the probability of getting tails when flipping a fair coin?

Back

1/2, since there are two possible outcomes: heads or tails.

Tags

CCSS.7.SP.C.7A

Front

If you flip a fair coin 40 times, how many times can you expect to get tails?

Back

20 times, because the expected number of tails is calculated as (1/2) * 40.

Tags

CCSS.7.SP.C.6

Front

What is the expected number of times to pick a blue marble if the probability of picking a blue marble is 1/3 and you pick 24 times?

Back

8 times, because (1/3) * 24 = 8.

Tags

CCSS.HSS.MD.A.2

Front

How do you calculate the probability of an event?

Back

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

Tags

CCSS.7.SP.C.7A

Front

What is the probability of rolling a 1 on a regular number cube?

Back

1/6, since there is one favorable outcome (rolling a 1) out of 6 possible outcomes.

Tags

CCSS.7.SP.C.7A

Front

If a spinner has 3 sections that are blue and 1 section that is yellow, what is the probability of landing on blue?

Back

3/4, because there are 3 favorable outcomes (blue) out of 4 possible outcomes.

Tags

CCSS.7.SP.C.7B

Front

What is the theoretical probability of drawing a red card from a standard deck of cards?

Back

1/2, since there are 26 red cards out of 52 total cards.

Tags

CCSS.7.SP.C.7B