The mean and variance of eight observations are 9 and 9.25, respe | Filo

Class 11

Math

JEE Main Questions

Statistics

550
150

The mean and variance of eight observations are 9 and 9.25, respectively. If six of the observations are 6, 7, 10, 12, 12 and 13, find the remaining two observations.

Solution: Solution:

eqn(1)
eqn(2)
when a=8 , b=4
when a=4, b=8
550
150

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