The mean and the variance of five observations are
\( \mathrm{P} \)... VIDEO
The mean and the variance of five observations are
\( \mathrm{P} \) 4 and 5.20 , respectively. If there of the observations
W are 3,4 and 4 ; then the absolute value of the difference of the other two observations, is:
(1) 7
(2) 5
(3) 1
(4) 3
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