Mean and Variance of Data (Jee Mains) | ExamDuo
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Dispersion and Variance
Medium
Mean and Variance of Data
The mean and variance of the data
4
,
5
,
6
,
6
,
7
,
8
,
x
,
y
, where
x
<
y
, are 6 and
9
4
respectively. Then
x
4
+
y
2
is equal to
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