A Simple Random Sample of 5 Observations from a Population $$\begin{array} { l l l l l } 12 & 18 & 19 & 20 & 21\end{array}$$

Multiple Choice

A simple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obtained. $$\begin{array} { l l l l l } 12 & 18 & 19 & 20 & 21\end{array}$$ A point estimate of the population mean is _____.

A) 5
B) 18
C) 19
D) 20