Simple and Compound Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Front

What is a simple probability?

Back

Simple probability refers to the likelihood of a single event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is a compound probability?

Back

Compound probability refers to the likelihood of two or more events occurring together, which can be calculated using the addition or multiplication rules.

Front

What is the formula for calculating simple probability?

Back

The formula for simple probability is: P(A) = \frac{Number\ of\ favorable\ outcomes}{Total\ number\ of\ outcomes}.

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What is the addition rule in probability?

Back

The addition rule states that the probability of the occurrence of at least one of two events is the sum of their individual probabilities minus the probability of their intersection.

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What is the multiplication rule in probability?

Back

The multiplication rule states that the probability of the occurrence of two independent events is the product of their individual probabilities.

Front

If a spinner has 3 equal sections labeled A, B, and C, what is the probability of landing on A?

Back

The probability of landing on A is P(A) = \frac{1}{3}.

Front

If a die is rolled, what is the probability of rolling a 4?

Back

The probability of rolling a 4 is P(4) = \frac{1}{6}.

Front

What is the probability of getting heads in a fair coin toss?

Back

The probability of getting heads is P(Heads) = \frac{1}{2}.

Front

What is the probability of rolling an even number on a standard die?

Back

The probability of rolling an even number (2, 4, or 6) is P(Even) = \frac{3}{6} = \frac{1}{2}.