Statistics: 5.1.6 Mode
SELF EXMINATION QUESTIONS Page 250 : Question 3
Q.13)
Calculate G. M. (upto 2 decimal places) :
(i) 90, 25, 81, 125/3
log GM = (1/4) ( log 90 + log 25 + log 81 + (log125 - log3)]
log GM = (1/4) [1.9542 + 1.3979 + 1.9085 + (2.0969 - 0.4771)]
log GM = (1/4) (6.8804) = 1.7201
GM = antilog 1.7201 = 52.49
(ii) 125, 700/3 , 450, 87
GM = (125 × 700/3 × 450 × 87)
1/4
log GM = (1/4) (log 125 + log 700 + log 450 + log 29)
log GM = (1/4) ( 2.0969 + 2.8451 + 2.6532 + 1.4624)
log GM = = (1/4) (9.0576) = 2.2644
GM = antilog 2.2644 = 183.9