Resolved Issue #4 - Called fork(),parent calls the mean function and child calls median
Changed median function to cast the formula to find median as a double, and moved fork() towards end of main.
Resolved Issue #5 - The child process now prints out the median.
Resolved #6 - The parent process now prints out the mean.
Resolved Issue #7 - The parent waits for child to finish.
Made some formatting changes to the output of the mean and median.