Probability and Counting

Take a six sided die and throw it twice. The picture is a list of all possible results. What is this list called?

• Sample Space

• Outcomes

• Fundamental Counting Principal

• Independent probability

A bowl of jelly bellies is on the table. 6 black licorice and 14 pear flavors. Mrs. Hettinger grabs one, smells that it is black licorice and pops the delicious bean into her mouth! What is the probability that three in a row will be black licorice flavored?

• (⁶/₁₄)(⁵/₁₃)(⁴/₁₂)

• (⁶/₂₀)

• (⁶/₂₀)³

• (⁶/₂₀)(⁵/₁₉)(⁴/₁₈)

When throwing a die two times in a row, choose all of the events that have a probability of 1/6. (or 6/36)

• rolling doubles

• rolling 1 on either die

• rolling a sum of 7

• rolling an even sum

Mrs. Hettinger's blood type is B negative. If two people are chosen at random, what is the probability that they will both have B negative blood?

• 0.02

• 2(.02) = .04

• (.02)² = .0004

• 2²(.02)² = .0016

The Nebraska license plate has 6 characters, each one filled with a number (0-9) or a letter. How many license plates are possible?

• 36

• 2176782336

• 60

• 1402410240

The most common blood type is 0+. What is the complement of this probability.

• 0.38

• 0.01

• 1 - 0.38 = 0.62

• (0.38)² = 0.1444

Three people are chosen at random. What is the probability that they are all universal donors? (O neg)

• 7%

• 21%

• .03%

• .3%

Four people from this class are chosen randomly. What is the probability that none of them universal donors? (O neg)

• 93%

• 28%

• 3.72%%

• 75%

Blood type probabilities are examples of what type of probability?

• Classical Probability - based solely on mathematical calculations

• Empirical Probability - based on data that has been gathered

• Subjective Probability - based on an educated guess

A password is made up of six digits. How many passcodes are possible?

• 9⁶

• 10⁶

• 9(6)

• 10(6)