Probabilities with Venn Diagrams

What statement does the shaded region represent

• A or B
• Not A
• A and B
• Not B

What statement does the shaded region represent?

• A or B
• Not B
• Not A
• Not A or B

What is P(Foreign language | Sport)?

• 14/27
• 7/12
• 23/47
• 37/47

What is P(not sport | Foreign language)?

• 23/37
• 14/23
• 14/37
• 3/23

What is P(not Sport | not Foreign Language)?

• 23/26
• 14/23
• 3/13
• 7/13

How many senior boys play football and wrestle?

• 9
• 12
• 18
• 39

How many senior boys play football but do not wrestle?

• 9
• 12
• 18
• 104

How many senior boys play football or wrestle?

• 9
• 21
• 30
• 39

What is the probability that someone plays basketball?

• .50

• .68

• .52

• .46

• -2

• 16

• 10