ML Interview Question | Missing Values
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?
(Hint- Don’t forget to mention about the thought process that you put for this problem)
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Answer ( 1 )
The 68-95-99 rule states that for a normal distribution there are approximately 68%
of the values which lie within 1 standard deviation from the mean.
similarly, there are 95 % of values which lie within 2 standard deviations of the mean and
there are 99% of values which lie within 3 standard deviation from the mean.
Assuming that the median is very close to the mean, we can say that approximately
32% of the values remain unaffected.