While cleaning her dorm room Monica mistakenly pushed three

While cleaning her dorm room, Monica mistakenly pushed three coins off the desk. When they land on the chair below, find the odds Part 1 out of 3 In favor of getting exactly three heads. The odds in favor of getting exactly three heads are.

Solution

Sol:

The number of possible outcomes of three coins when they land on the chair are as follows:

HHH, HHT, HTH, THH, HTT, THT, TTH, and TTT.

We need a outcome of exactly three heads:

From the outcomes we get only 1 favorable outcome and 7 against outcomes.

Therefore, the odds are 7:1.