Simple Probability

Front

What is the definition of 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 the formula to calculate probability?

Back

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

Front

If a bag contains 4 red, 2 blue, and 3 green marbles, what is the probability of drawing a blue marble?

Back

Probability = 2/9

Front

What does it mean if an event has a probability of 1?

Back

It means the event is certain to occur.

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.

Front

In a standard deck of cards, what is the probability of drawing an Ace?

Back

Probability = 4/52 = 1/13

Front

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

Back

Probability = 1/6

Front

If you flip a coin, what is the probability of getting heads?

Back

Probability = 1/2

Front

What is the probability of selecting a brown candy from a bowl with 4 yellow, 6 orange, 3 green, 5 blue, and 2 brown candies?

Back

Probability = 2/20 = 1/10

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.