Probability of Compound Events (middle school)

Front

What is the probability of a compound event?

Back

The probability of a compound event is the likelihood of two or more events happening at the same time, calculated by multiplying the probabilities of the individual events.

Front

Define independent events in probability.

Back

Independent events are events where the outcome of one event does not affect the outcome of another event.

Front

What is the formula for calculating the probability of two independent events A and B occurring?

Back

The formula is P(A and B) = P(A) * P(B).

Front

If a spinner has 4 equal sections (1 red, 1 blue, 1 green, 1 yellow), what is the probability of spinning red?

Back

Front

What is the probability of drawing a red marble from a bag containing 2 red, 3 green, and 3 blue marbles?

Back

Front

Explain the concept of replacement in probability.

Back

Replacement means that after an event occurs (like drawing a marble), the item is put back into the set before the next event occurs, keeping the probabilities the same.

Front

What is the probability of rolling a 3 on a number cube (die)?

Back

Front

If you flip a coin and roll a die, what is the probability of getting heads and a 4?

Back

Front

What is the theoretical probability of pulling a blue marble from a bag with 3 red, 2 blue, and 4 yellow marbles?

Back

Front

Define dependent events in probability.

Back

Dependent events are events where the outcome of one event affects the outcome of another event.