Probability: Conditional, Independent and Dependent Events

A bag of marbles contains 5 red, 8 green and 2 blue marbles. If two marbles are chosen randomly and NOT put back in the bag, what is the probability that you pick a red marble first and a green marble second?

• 8/45

• 1/21

• 4/21

• 2/45

A bag of marbles contains 5 red, 8 green and 2 blue marbles. If two marbles are chosen randomly and NOT put back in the bag, what is the probability that you pick two green marbles?

• 56/225

• 4/15

• 64/225

• 32/102

Tags

CCSS.HSS.CP.B.9

A bag of marbles contains 5 red, 8 green and 2 blue marbles. If two marbles are chosen randomly and put back in the bag, what is the probability that you pick a blue marble and then a green marble?

• 8/105

• 16/225

• 1/15

• 4/225

What is the probability a student passed the test?

• 5/6

• 50

• 1/6

• 0.5

What is the probability that a student is a junior, given they passed the test?

• 3/4

• 1/4

• 17/50

• 3/10

Tags

CCSS.HSS.CP.A.4

Find P(Y).

• 0.34

• 0.57

• 0.60

• 0.50

What is the probability that someone plays basketball?

• .50

• .68

• .52

• .46

Tags

CCSS.HSS.CP.A.1

What does the shaded portion of the Venn diagram represent?

• Not p
• p or q
• p and q
• Not q

Tags

CCSS.HSS.CP.A.1

How many senior boys play football or wrestle?

• 9
• 21
• 30
• 39

Tags

CCSS.HSS.CP.A.1

What statement does the shaded region represent?

• A or B
• A and B
• A
• B

Tags

CCSS.HSS.CP.A.1