WWMS Probability: Independent and Dependent Events

Front

What is the probability of rolling an odd number on a number cube?

Back

There are 3 odd numbers (1, 3, 5) on a number cube, so the probability is 3/6 or 1/2.

Front

What is the probability of rolling an odd number twice in a row on a number cube?

Back

The probability is (1/2) * (1/2) = 1/4.

Front

What is the probability of tossing a coin and getting tails?

Back

The probability is 1/2.

Front

What is the probability of tossing a coin four times and getting tails each time?

Back

The probability is (1/2)^4 = 1/16.

Front

What is dependent probability?

Back

Dependent probability occurs when the outcome of one event affects the outcome of another.

Front

What is independent probability?

Back

Independent probability occurs when the outcome of one event does not affect the outcome of another.

Front

If a card is drawn from a deck and not replaced, what type of probability is this?

Back

This is an example of dependent probability.

Front

If a card is drawn from a deck and replaced, what type of probability is this?

Back

This is an example of independent probability.

Front

What happens to the total number of outcomes in dependent probability?

Back

The total number of outcomes decreases by 1 after each event.

Front

What is the probability of drawing two marbles from a container with replacement?

Back

The probability remains the same for each draw since the first marble is replaced.