Question

Following table shows the marks obtained by 100 students of class x in a schoolduring a particular academic session. find the mode of this distribution.marks no. of studentsless then 10 7less than 20 21less than 30 34less than 40 46less than 50 66less than 60 77less than 70 92less than 80 100

Answer 1

Answer:

I can't understand this question soory

Answer 2

Answer:44.7

Step-by-step explanation:

  Class interval: 0-10   10-20  20-30  30-40  40-50  50-60  60-70  70-80                                                              

      LCF                  7           21       34      46      66        77         92        100

Frequency            7             14       13       12       20        11           15        8

      modal class= 40-50 l= 40 f1=20 f0= 12 f2=11

mode= l + (f1-f2)/(2f1-f0-f2)*h  =  40+(20-12)/(2*20-12-11) *10

40+(8)/17*10 =40+80/17

=40+4.705 = 40+4.700 (705 Rounded to 700)

=44.7