Unit 8 - Probability

A teacher asked her students which of them went to Stone Mountain Park and which of them went to Six Flags over the summer break. She created a chart. Which VENN diagram shows the correct quantities in each region based on the chart?

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A teacher is making a VENN diagram of his students. The teacher wants to consider which students have a pet dog and which have a pet cat. His student Jessica has a cat and a dog. In which region or regions would you place Jessica in the VENN diagram shown?

• Region A and C

• Region A, B, and C

• Region B only

• Region D only

A teacher asked how many of her students if they have any relatives living in some of the states bordering Georgia. How many of her students have relatives that live in Alabama and Florida?

• 3

• 5

• 2

• 15

An teacher asked her students in her 1st period which streaming movie services they had access to at their house and created the VENN diagram to display the data. How many students would be in the set (Netflix)' ∩ Amazon? (i.e. the intersection of the complement of Netflix and Amazon)

• 1

• 2

• 5

• 15

A car manufacturer builds trucks and cars both in red, blue, and green colors. Let B represent the set of all red vehicles produced by the manufacturer and let C represent the set of all trucks produced by the manufacturer. If all of the vehicles below are produced by the manufacturer, which could be in the set (B ∩ C')?

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What is the approximate probability of drawing a Red Face Card from a standard deck of shuffled cards?

• 23.1%

• 19.2%

• 15.4%

• 11.5%

What is the probability of spinning the spinner and the arrow landing on the number ‘2’?

• 1/4

• 1/2

• 1/8

• 3/8

Alex went bowling. He managed to get 3 strikes after 15 attempts. If you were to suggest the probability that he gets a strike on his next attempt, what type of probability would you be using?

• Subjective Probability

• Empirical Probability

• Theoretical Probability

• Authentic Probability

A mechanic tells a customer that replacing the tensioner on the timing belt has about an 80% chance of fixing the problem with the car. What type of probability is the mechanic using?

• Subjective Probability

• Empirical Probability

• Theoretical Probability

• Authentic Probability

A repair person is scheduled to be at your apartment between 9:00am to 12:00pm but you have to leave at 11:30 to help out a friend. If the repair person is equally likely to be at your apartment any time during the appointment time, what is the probability that you will be there?

• 16.7%

• 50%

• 83.3%

• 91.2%