# Question: When a certain type of thumbtack is tossed the probability

When a certain type of thumbtack is tossed, the probability that it lands tip up is 60%. All possible outcomes when two thumbtacks are tossed are listed. U means the tip is up, and D means the tip is down.

UU UD DU DD

a. What is the probability of getting two Ups?

b. What is the probability of getting exactly one Up?

c. What is the probability of getting at least one Up (one or more Ups)?

d. What is the probability of getting at most one Up (one or fewer Ups)?

UU UD DU DD

a. What is the probability of getting two Ups?

b. What is the probability of getting exactly one Up?

c. What is the probability of getting at least one Up (one or more Ups)?

d. What is the probability of getting at most one Up (one or fewer Ups)?

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