Solve the Problem Compute the Empirical Probability That Exactly One Tail Occurred

Multiple Choice

Solve the problem.
-Two coins are tossed 20 times and the number of tails is observed. $\begin{array}{l|ccc}\text { Outcome } & 2 \text { tails } & 1 \text { tail } & 0 \text { tails } \\\hline \text { Frequency } & 1 & 0 & 19\end{array}$

Compute the empirical probability that exactly one tail occurred.

A) $\frac { 1 } { 4 }$
B) $\frac { 19 } { 20 }$
C) 0
D) $\frac { 1 } { 2 }$