Question

8. The electricity bills (in rupees) of 25 houses in a locality are given below. Construct a grouped frequency distribution table with a class size of 75 . \[ \begin{array}{l} 170,212,252,225,310,712,412,425,322,325,192,198,230,320,412 \\ 530,602,724,370,402,317,403,405,372,413 \end{array} \]

Answer 1

Electric bill in (Rs)      Number of house (f)
class intervals 
   150-225                              4
   225-300                              3
   300-375                              7
    375-450                             7
    450-525                             0
    525-600                             1
    600-675                             1
    675-750                             2