Steve makes the tree diagram shown below to find the possible outcomes of tossing a penny, a nickel, and a dime. What is the probability that all three coins land on the same side?

Steve makes the tree diagram shown below to find the possible outcomes of tossing a penny a nickel and a dime What is the probability that all three coins land class=

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The answer is B) 1/4.

There are 2 outcomes in his tree that have all coins with the same side up:  HHH and TTT.  There are 8 total outcomes.  This makes the probability 2/8 = 1/4.