Probability Review Game (PS)

It is known that a certain disease occurs in 5% of a large population. A test for the disease has a positive result 90% of the time for people with the disease. What is the probability a randomly selected person has the disease and tests positive for the disease?

• O.95

• 0.85

• 0.055

• 0.045

At a large high school, 15% of the students drive to school. Of the students that drive to school, 80% are seniors. What is the probability a randomly selected student drives to school and is a senior?

• 0.12

• 0.19

• 0.65

• 0.95

At a local high school, 30% of the students are enrolled in Chemistry. Of the students enrolled in Chemistry, 60% are also enrolled in Algebra 2. Of the students not enrolled in Chemistry, 20% are enrolled in Algebra 2. What is th probability that a randomly chosen student from this high school is enrolled in algebra 2?

• 0.18

• 0.80

• 0.40

• 0.32

Assume a randomly chosen battery has a probability of 0.8 of working. A remote control requires two working batteries in order to work. What is the probability a remote control will work if two randomly chosen batteries are put into a remote control?

• 0.84

• 0.64

• 0.36

• 0.16

Mary is a good student. The probability that she studies and passes her test is 3/5. If the probability that she studies is 8/9. What is the probability that she passes given that she studies? 

• 27/40
• 1.48
• .008
• .0593

Tags

CCSS.HSS.CP.B.6

The probability that a women likes the color blue is 10%. The probability of being a women is 40%. What is the probability that the a women is chose given they liked the color blue? 

• 4
• .4
• .1
• .25

Tags

CCSS.HSS.CP.B.6

Two dice are rolled and it is recorded whether the result on each is odd or even. What is the probability both are odd?

• 1/4

• 1/2

• 2/4

• 3/4

Tags

CCSS.7.SP.C.8B

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
How many total outcomes are there?  

• 6
• 12
• 24
• 36

Tags

CCSS.7.SP.C.8B

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
What is the probability of rolling an even number and flipping a head?

• ³/₁₂
• ¹/₂
• ⁴/₁₂
• ⁰/₁₂

Tags

CCSS.7.SP.C.8B

The tree diagram shows the outcomes of rolling a die and flipping a coin.  
What is the probability of rolling a less than 6 and flipping a head?

• ²/₁₂
• ³/₁₂
• ⁴/₁₂
• ⁵/₁₂

Tags

CCSS.7.SP.C.8B