On flipping a coin 3 times the probability of getting 3 heads, we get total eight outcomes as {HHH, THH, HTH, HHT, TTH, THT, HTT, TTT}Total outcomes are - 8 and among these three heads has one outcome only. Now, use the coin toss probability formula and apply the values below:P (getting three heads) =number of favorable outcomestotal number of possible outcomes = 18Therefore, P (getting three heads) = 0.125.