Basics of Probability and Counting

Which of the following will correctly complete the following statement. Probability, when written as a fraction, will . . .

• never be equal to zero

• sometimes be greater than 1

• always be from 0 to 1

• will never be equal to 1

A number that indicates the likelihood of an outcome happening is the definition of ___.

• outcome

• probability

• sample space

• experiment

A die is rolled. What is the probability of rolling a 1 or a number greater than 3? (Reduce the fraction!)

• 2/3

• 1/2

• 5/6

• 1

What is the probability that a student plays an instrument?

• 11/20 = .55

• 10/20 = .5

• 9/20 = .45

• 8/20 = .4

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a dime?

• 2

• 40%

• 1/3

• 2/11

Fundamental Counting Principle: A particular model at a New Car Dealership comes in 4 trim levels, 5 different colors, and 3 different interiors. How many different versions of this car model can be created from these options?

• 60

• 180

• 23

• 12

• 126

How many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?

• 80

• 15

• 40

• 10

• 880

Match the following

• Has a probability of 1

• Probability

• List of all possible outcomes

• Certain

• Has a probability of 1/2

• Sample Space

• Has a probability of 0

• Impossible

• The likelihood of an event

• Equally Likely as Unlikely

What is the probability of blindly choosing a BLUE marble from this bag?

• 1/6

• 6/20

• 0.3

• 0.6

When rolling a regular 6-sided cube one time, what are the possible outcomes?

• 0, 1, 2, 3, 4, 5, 6

• 1, 6

• 1, 2, 3, 4, 5, 6

• 2, 4, 6