Probability

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 an Independent Event?

Back

An independent event is one where the outcome of one event does not affect the outcome of another.

Front

What is a Dependent Event?

Back

A dependent event is one where the outcome of one event affects the outcome of another.

Front

How do you calculate the probability of a single event?

Back

P(A) = Number of favorable outcomes / Total number of outcomes.

Front

What is the probability of rolling a 3 on a standard number cube?

Back

P(3) = 1/6.

Front

What is the probability of drawing a red marble from a jar with 7 red, 10 green, and 3 blue marbles?

Back

P(red) = 7/(7+10+3) = 7/20.

Front

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

Back

P(tails) = 1/2.

Front

What is the probability of two independent events both occurring?

Back

P(A and B) = P(A) * P(B).

Front

What is the probability of two dependent events occurring?

Back

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

Front

What is the probability of getting a specific outcome when spinning a spinner divided into equal sections?

Back

P(outcome) = 1/number of sections.