Simple Probability Practice

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the probability of an impossible event?

Back

0

Front

What is the probability of a certain event?

Back

1

Front

How do you calculate the probability of a single event?

Back

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

Front

If a bag contains 3 black marbles and 2 white marbles, what is the probability of picking a black marble?

Back

3/5

Front

What is the probability of rolling a number greater than 4 on a standard die?

Back

1/3 (only 5 and 6 are greater than 4).

Front

What is the probability of spinning a number less than 3 on a spinner divided into 6 equal sections numbered 1 to 6?

Back

1/3 (only 1 and 2 are less than 3).

Front

If you have a standard deck of 52 playing cards, what is the probability of drawing a heart?

Back

1/4 (there are 13 hearts in a deck).

Front

What is the probability of rolling a 5 on a single die?

Back

1/6

Front

In a bowl with 4 red, 5 green, and 1 blue candy, what is the probability of selecting a green candy?

Back

5/10 or 1/2