Probability

Front

What is Probability?

Back

Probability is the 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 event.

Front

What is a Dependent Event?

Back

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

Front

What is the formula for calculating probability?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes)

Front

If a bag contains 2 pink, 6 red, and 4 blue marbles, what is the total number of marbles?

Back

Total marbles = 2 + 6 + 4 = 12.

Front

What is the probability of picking a red marble from a bag with 2 pink, 6 red, and 4 blue marbles?

Back

Probability of red = 6/12 = 1/2.

Front

What does it mean if an event is 'Impossible'?

Back

An impossible event is one that cannot happen, with a probability of 0.

Front

What does it mean if an event is 'Certain'?

Back

A certain event is one that will definitely happen, with a probability of 1.

Front

What is the probability of rolling a 15 on a standard number cube?

Back

The probability is 0, as a standard number cube has numbers 1 to 6.

Front

What is the probability of picking a green marble if there are 5 green marbles in a jar of 19 total marbles?

Back

Probability of green = 5/19.