Which data cleaning technique is most appropriate for handling missing data when missing values are randomly distributed across a dataset?
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.
Where was the first Arya Samaj unit established by Dayanand Saraswati?
In the context of the revolutionary activity outside India, consider the following statements:
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Consider the following statements with reference to Indian Social Conference.
1. Founded by M.G. Ranade and Raghunath Rao.
2. It was ...
Which of the following rulers of the Gupta Empire is described as 'Maharajadhiraja'?
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1. The East India A...
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1. Saadat Khan was appointed as the governor of Awadh by Mughal Emperor Ahmad Shah....
The Jallianwala Bagh massacre took place in which year
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According to Mahatma Gandhi's 'Hind Swaraj' (1909), British rule in India was established _____.
The First Anglo-Burmese War was concluded with which treaty?