\

\

\"\"

\

Mean of a set is the sum of the values divided by the number of values in the set.

\

Mean of two real numbers is,\"\", where a, b are real numbers.

\

 \"\"                   (Substitute \"\")

\

\"\"                          (Add: \"\")

\

\"\"                           (Divide: \"\")

\

\"\"

\

Mean is \"\"

\