Find out standard deviation and its coefficient of the following series
size: 10 20 30 40 50 60 70
frequency 6 8 16 15 33 11 12

DDD
  • -6
H - L means 70-60 = 10 so QD is 10
  • -6
Coefficient of range H-L ? H+L means 70-60 ? 70+60= 0.769
  • -9
Don't know
  • -6
Find out standard deviation And its coefficient of the following series 20 30 40 50 60 70 frequency 6816 1553 11:12
  • -3
F 6 8 16 15 33 12 12

  • 0
Sadaf
  • 1
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