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AP EAPCET 06-Jul-2022 Shift 1 Paper
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© examsnet.com
Question : 34
Total: 160
If the total number of observations is
20
,
∑
x
i
=
1000
and
∑
x
i
2
=
84000
, then the variance of the distribution is
1500
1600
1700
1800
Validate
Solution:
👈: Video Solution
We have,
Variance
=
Σ
x
1
2
n
−
(
Σ
x
1
n
)
2
=
84000
20
−
(
1000
20
)
2
=
4200
−
2500
=
1700
© examsnet.com
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