Compound Probability

Front

What is compound probability?

Back

Compound probability is the probability of two or more events happening at the same time. It can be calculated by multiplying the probabilities of the individual events.

Front

How do you calculate the probability of independent events?

Back

For independent events, the probability of both events occurring is the product of their individual probabilities. P(A and B) = P(A) * P(B).

Front

What is the probability of spinning red on a spinner with equal sections?

Back

If the spinner has equal sections, the probability of landing on red is the number of red sections divided by the total number of sections.

Front

If a bag contains 2 red, 3 green, and 3 blue marbles, what is the total number of marbles?

Back

The total number of marbles is 2 + 3 + 3 = 8.

Front

What is the probability of picking a red marble from a bag of 8 marbles with 2 red marbles?

Back

The probability is 2/8 or 1/4.

Front

What is the probability of landing on blue first and then yellow or green on a spinner?

Back

To find this, multiply the probability of landing on blue by the probability of landing on yellow or green.

Front

How do you find the probability of two events happening in sequence?

Back

Multiply the probability of the first event by the probability of the second event, assuming the first event does not affect the second.

Front

What is the probability of rolling a 6 on a number cube?

Back

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

Front

What is the probability of rolling a number less than 5 on a number cube?

Back

The probability is 4/6 or 2/3, since the favorable outcomes are 1, 2, 3, and 4.

Front

What is the probability of getting tails on a coin toss?

Back

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