Q.
1

 

Where: K= Number of classes                   N= Total number of observations

(log N) = Logarithm of the total number of observations

  • A

    K=1+3.322(log N)

     

  • B

    K= (log N) 1.322

     

  • C

    K = 1+3.322 

           (log N)                                                                  

     

  • D

    K = 3.322

          (log N) +1