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When missing data points are randomly distributed, imputing values using the mean (for continuous data) or median (for skewed distributions) can be an effective technique. This approach maintains the dataset’s overall structure and helps reduce potential bias introduced by missing values. By substituting missing values with central tendencies, analysts can preserve statistical relationships without significantly distorting the data, ensuring a more accurate analysis. Option A is incorrect as removing rows may lead to a significant data loss, especially if many rows contain missing values. Option C is incorrect because dropping columns with missing values reduces feature dimensions, potentially discarding useful information. Option D is incorrect as placeholder values can introduce bias or mislead analysis, especially if the placeholder value skews the distribution. Option E is incorrect because ignoring missing values leaves gaps, making it difficult to perform accurate analysis.
‘M $ K’ means ‘M is the mother of K’.
‘M # K’ means ‘M is the father of K’.
‘M @ K’ means ‘M is the husband of K’....
If 'A # B' means A is the brother of B, 'A $ B' means A is the mother of B, 'A % B' means A is the spouse of B, then which of the following expressions...
If J & I @ H + G is true then, how is G related to J?
'R - S' means 'R is the brother of S'
'R # S' means 'R is the daughter of S'
'R * S' means 'R is the father of S'
'R $ S' means 'R ...
If F % G means F is the sister of G, F # G means F is the mother of G, F @ G means F is the son of G, F $ G means F is the daughter of G. In the given e...
'A@B' means 'A is the father of B'. 'A#B' means 'A is the sister of B'. 'A$B' means 'A is the brother of B'. 'A%B' means 'A is the wife of B'.
If...
If ‘E # F + D + A * B & C’ is true, then how is D related to C?
'A + B' means 'A is the sister of B'. 'A - B' means 'A is the brother of B'. 'A X B' means 'A is the father of B'. 'A ÷ B' means 'A is the wife of B'. ...
‘R&S’ means ‘R is husband of S’.
‘R%S’ means ‘R is wife of S’.
‘R@S’ means ‘R is father of S’.
‘R#...