In an experiment with 15 observations on , the following results were available. One observation that was 20 was found to be wrong and was replaced by the correct value 30. Then the corrected variance is
188.66
177.33
8.33
78.00
As we learnt in
Variance -
In case of discrete data
-
=
Option 1)
188.66
Incorrect
Option 2)
177.33
Incorrect
Option 3)
8.33
Incorrect
Option 4)
78.00
Correct
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