Monthly sales figures for a store are as follows:
Jan $62k Feb $71k Mar $68k Apr $47k
May $71k Jun $69k Jul $80k Aug $75k
Sept $87k Oct $77k Nov $63k Dec $70k
Please refer attached file for complete solution. Expressions typed with the help of equation writer are missing here.
The solution describes the steps to calculate mid range, standard deviation and variance of given data.