The Life Expectancies, in Years, in Ten Selected Central and South

The life expectancies, in years, in ten selected Central and South American countries are given at the below.
a. Find the mean life expectancy in this group of countries.
b. Find the median life expectancy in this group of countries.
$$\begin{array} { c c } \text { COUNTRY } & \text { LIFE } \\& \text { EXPECTANCY } \\\text { Brazil } & 73 \\\text { Chile } & 77 \\\text { Costa Rica } & 77 \\\text { Ecuador } & 77 \\\text { Guatemala } & 82 \\\text { Panama } & 85 \\\text { Peru } & 82 \\\text { Trinidad and Tobago } & 60 \\\text { Uruguay } & 88 \\\text { Venezuela } & 74\end{array}$$

A) Mean: 80.5 years; median: 80 years
B) Mean: 81.5 years; median: 79 years
C) Mean: 78.5 years; median: 78 years
D) Mean: 77.5 years; median: 77 years
E) Mean: 79.5 years; median: 76 years