7th Grade-Probability Review

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is a dependent event in probability?

Back

A dependent event is an event whose outcome is affected by the outcome of a previous event.

Front

What is the formula for calculating the probability of drawing two dependent events without replacement?

Back

P(A and B) = P(A) * P(B|A), where P(B|A) is the probability of B given A has occurred.

Front

How do you calculate the probability of an event not occurring?

Back

P(not A) = 1 - P(A), where P(A) is the probability of the event occurring.

Front

What is a tree diagram in probability?

Back

A tree diagram is a visual representation that shows all possible outcomes of an event and their probabilities.

Front

How do you find the probability of choosing a specific letter from a set of letters?

Back

P(specific letter) = Number of specific letters / Total number of letters.

Front

What is the probability of drawing a specific card from a deck?

Back

P(specific card) = 1 / Total number of cards in the deck.

Front

What does it mean to have a sample space in probability?

Back

The sample space is the set of all possible outcomes of a probability experiment.

Front

What is the probability of rolling a specific number on a fair die?

Back

P(specific number) = 1 / 6, since there are 6 possible outcomes.

Front

How do you calculate the probability of multiple independent events occurring?

Back

P(A and B) = P(A) * P(B), where A and B are independent events.