First organice the data from lower to higher
15 21 22 25 27 28 36 37 39 41 43 50
The mean is the average
[tex]\frac{15+21+22+25+27+28+36+37+39+41+43+50}{12}=32[/tex]
The median is the number in the middel when is organized from lower to higher
In this case are 28 and 36, usually in these cases you get the average or on of them
[tex]\frac{36+28}{2}=32[/tex]
