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Explanation: Replacing missing data with statistical measures like mean (for continuous data), median (for skewed distributions), or mode (for categorical data) is a robust imputation technique. This approach minimizes the loss of data while maintaining the dataset's integrity. It is particularly effective when missing values are random (MCAR) and do not introduce significant bias. However, this method may not work well for datasets with a high proportion of missing values or when patterns in the missing data need to be preserved. Advanced imputation methods like k-Nearest Neighbors (KNN) or predictive models can be used in such cases. Option A: Deleting rows with missing values can result in significant data loss, reducing the dataset's representativeness. Option C: Ignoring missing data leads to inaccuracies and potential errors in analysis. Option D: Filling with arbitrary constants like zero can distort the dataset, introducing bias. Option E: Duplicating rows compromises the dataset's integrity and can lead to overfitting in predictive models.
Select the option that is related to the third term in the same way as the second term is related to the first term.
DFB : GHC :: LNJ : ?
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the letter-cluster that is different.Â
Select the correct option that indicates the arrangement of the given words in the order in which they appear in an English dictionary.
1. Grasp<...
‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of Bâ...
The position of how many alphabets will remain unchanged if each of the alphabets in the word ‘MANGROVE’ is arranged in alphabetical order from left...
Arrange the following in the English alphabetical order:
(i) Exploration
(ii) Exploitative
(iii) Exploratory
(iv) ExploitationÂ
WATER : RVOZM :: BOTTLE : ?
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the equation.
180 $ 9 $ 6 ...
How many pairs of letters are there in the word ‘FARMHOUSE’ each of which have as many letters between them (both forward and backward direction) in...
In a certain code language, SAFETY is written as 21 – 3 – 8 – 7 – 22 – 27. How will FRIEND be written in that code language?
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