Missing value treatment with Median
Question
You are given a data set. The data set has missing values which spread along 1 standard deviation from the median. What percentage of data would remain unaffected? Why?
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Answer ( 1 )
The data is spread across median. We know, in a normal distribution, ~68% of the data lies in 1 standard deviation from (or median which leaves ~32% of the data unaffected. Therefore, ~32% of the data would remain unaffected by missing values.