Simple 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.

Front

What does P(not green) represent?

Back

P(not green) represents the probability of selecting an item that is not green.

Front

If there are 12 items and 2 are green, what is P(not green)?

Back

P(not green) = 10/12 = 5/6.

Front

What is the probability of flipping a fair coin and getting heads?

Back

P(heads) = 1/2.

Front

What is the probability of flipping a quarter and getting tails?

Back

P(tails) = 1/2.

Front

If the probability of drawing a short straw is 3/10, how many short straws are in 100 total straws?

Back

There are 30 short straws.

Front

What is P(even) when rolling a fair die?

Back

P(even) = 3/6 = 1/2.

Front

What is the probability of rolling a 3 on a fair six-sided die?

Back

P(rolling a 3) = 1/6.

Front

What is the total number of outcomes when rolling a die?

Back

There are 6 possible outcomes when rolling a die.

Front

What does P(cube) refer to in probability?

Back

P(cube) refers to the probability of rolling a number that is a cube (1 or 8) on a die.