Question

4.Maria tossed a coin three times. She wrote

a list of her possible outcomes. How many
outcomes on her list had at least one Tail?


A. 1
B. 3
C. 7
D. 8

Answer 1

(a) 1

Explanation:

In each outcome triplet, each flip has a chance to be H or T. Thus, the following describes all the possible outcomes:

• HHH
• HHT
• HTH
• HTT
• THH
• THT
• TTH
• TTT

We see that the only option without one tail is the first one, HHH, so the answer is (a) 1.