JEE Main 2020 — Statistics Question with Solution
From: JEE Main 2020 (Online) 4th September Morning Slot
Question
The mean and variance of 8 observations are 10 and 13.5, respectively. If 6 of these observations
are 5, 7, 10, 12, 14, 15, then the absolute difference of the remaining two observations is :
Choose an option
Show full solutionCorrect option: C
Correct answer
C7
Step-by-step explanation
Let the two remaining observations be x and y.
....(1)
....(2)
From (1) and (2)
(x, y) = (12, 5) or (5, 12)
So
....(1)
....(2)
From (1) and (2)
(x, y) = (12, 5) or (5, 12)
So
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