10.2 Compound & Conditional Probability

A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? 

• 2/3
• 5/36
• 1/9
• 1/36

Ricardo has the spinner pictured here and a bag of marbles filled with 2 red marbles, 3 green marbles, and 3 blue marbles. What is the probability that Ricardo spins red on the spinner and picks a red marble out of the bag?

• 1 ⁄ 16
• 1 ⁄ 2
• 1 ⁄ 4
• 1 ⁄ 8

Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?

• 1 / 16
• 1 ⁄ 6
• 1 ⁄ 8
• 3 ⁄ 4

When using a 6-sided number cube, what is the probability or rolling a 3, then not rolling a 3, and then rolling an even number?

• 1/12
• 1/2
• 5/6
• 5/72

Jamie has 3 raffle tickets. One hundred tickets were sold. Her name was not drawn for the first prize. What is the probability that her name will be drawn for the second prize?

• 1/3
• 1/33
• 3/100
• 2/99

Tags

CCSS.7.SP.C.7B

You roll a six sided die. What is the probability of rolling an even number three times in a row? 

• 3/100
• 1/2
• 1/6
• 1/8

A chorus has 50 girls and 35 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys? HINT: You can not have the same person twice in a duet 

• 1/6
• 7/17
• 3/8
• 13/25

Tags

CCSS.HSS.CP.B.9

A quiz contains 5 true or false questions. If you forgot to study and do not know the answer to them and guess, what is the probability of getting them all right? HINT: What is the probability of getting a True or False question correct on a test

• 1/60

• 1/32

• 1/6

• 1/2

Tags

CCSS.HSS.MD.B.6

CCSS.HSS.MD.B.7

The probability of an event occuring given that another event has already occured is called

• Independent Events

• Conditional Probability

• Dependent Events

• FPC

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5

What is the formula for Conditional Probability?

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.A.5