Probability 1
Probability 2
Probability 3
Probability 4
Ratio Review
100

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

  • a. 1/3
  • b. 1/6
  • c. 3/6
  • d. 3/1

What is B.1/6

100

A bag contains 8 red balls and 12 green balls. If you pick one ball at random, what is the complement of the probability of picking a red ball?

  • a. 8/20
  • b. 12/20
  • c. 1/20
  • d. 20/20

What is B.12/20

100

 If the weather forecast says there is a 15% chance of snow, how would you describe this probability?

  • a. Likely
  • b. Unlikely
  • c. Certain
  • d. Impossible

What is B. Unlikely 

100

A standard 6-sided die is rolled. What is the probability of rolling a 4?

What is 1/6

100

There are 15 students in total. 8 are boys and 7 are girls. What is the ratio of boys to total? 

What is 8:15, 8/15, or 8 to 15

200

If you flip a fair coin, what is the probability of getting heads expressed as a decimal?

  • a. 0.25
  • b. 0.5
  • c. 0.75
  • d. 1.0

What is B.0.5

200

 A spinner has 4 equal sections colored red, blue, green, and yellow. What is the probability of the spinner landing on either red or blue?

  • a. 1/4
  • b. 2/4
  • c. 3/4
  • d. 4/4

What is B. 2/4

200

 Which of the following probabilities represents an impossible event?

  • a. 0
  • b. 1/4
  • c. 0.5
  • d. 1

What is A.0

200

A bag contains 3 red marbles and 5 blue marbles. What is the probability of picking a red marble? Also, what is the complement of this probability?

What is 3/8 and 5/8

200

A bag contains 5 red marbles, 6 blue marbles, and 8 green marbles. What is ratio of green to blue marbles?

What is 4:3?

300

 In a bag of 20 marbles, 5 are blue. What is the probability of randomly selecting a blue marble expressed as a percent?

  • a. 5%
  • b. 20%
  • c. 25%
  • d. 75%

What is C.25%

300

 If the probability of an event is 40%, how would you express this as a fraction in simplest form?

  • a. 4/10
  • b. 2/5
  • c. 40/100
  • d. 4/100

What is B. 2/5

300

Which of the following probabilities would be described as "neither unlikely nor likely"?

  • a. 0.05
  • b. 0.5
  • c. 0.9
  • d. 0

What is B. 0.5

300

A spinner is divided into 4 equal parts: green, blue, yellow, and red. If you spin the wheel once, what is the probability that it does not land on yellow? Give the answer in fraction, percent, and decimal form. 

What is 3/4, 75%, and 0.75

300

In a classroom of 26 students, 5 like science 10 like math, and 11 like ELA. What is the ratio of ELA to whole?

What is 11:26, 11/26, or 11 to 26

400

 The probability of an event that will definitely happen is:

  • a. 0
  • b. 1/2
  • c. 1
  • d. 2

What is C.1

400

Which of these probabilities would be considered "likely" to occur?

  • a. 0.1
  • b. 0.25
  • c. 0.75
  • d. 0

What is C. 0.75

400

14.probability of rolling an even number expressed as a percent?

  • a. 33%
  • b. 50%
  • c. 66%
  • d. 100%

What is B. 50%

400

A deck of cards has 52 cards. What is the probability of drawing a king? What is the probability of not drawing a king?

What is 48/52

400

Is 3/5 equivalent to 15/6

What is No?

500

If the probability of rain tomorrow is 0.7, what is the probability that it will NOT rain tomorrow?

  • a. 0.3
  • b. 0.7
  • c. 1.7
  • d. 7.0


What is A.0.3

500

 In a deck of 52 cards, what is the probability of drawing a heart expressed as a fraction?

  • a. 1/4
  • b. 13/52
  • c. 1/13
  • d. 4/13

What is A. 1/4

500

 A jar contains 6 white, 4 black, and 10 blue marbles. If you pick one marble at random, what is the probability of NOT picking a blue marble?

  • a. 10/20
  • b. 6/20
  • c. 4/20
  • d. 10/10

What is A. 10/20

500

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

What is 1/6 and 5/6

500

What is the proportion to the ratio 20:40?

What is 1/2