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Previous Year Question (PYQs)

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The mean of 5 observation is 5 and their variance is 12.4. If three of the observations are 1,2 and 6; then the mean deviation from the mean of the data is:

1
2
3
4

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Jyotika Singh , student
Commented Apr 02 , 2021

variance is 12.4 not 124

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Sharda thakur , Mca preparation
Commented Mar 12 , 2020

The mean of 5 observations is 5 and their variance is 124. If three of the observations are 1, 2, 6, then the mean deviation from the mean of the data is

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