Data cleaning focuses on resolving inconsistencies, filling missing values, removing duplicates, and handling outliers to ensure the dataset is accurate, complete, and reliable. High-quality data is critical for generating meaningful insights and avoiding analytical errors. For example, incorrect or incomplete customer information in a sales dataset could lead to flawed marketing strategies. Techniques such as imputation, deduplication, and outlier treatment ensure the dataset is ready for analysis. Clean data enables better decision-making and enhances the credibility of data-driven insights. Why Other Options Are Incorrect: • A: Data transformation involves reformatting or scaling data, not cleaning it. • C: Cleaning prepares data for visualization but is not specifically aimed at visualization. • D: Standardization may occur during cleaning but is not its sole purpose. • E: While validation is related to accuracy, cleaning focuses more broadly on quality improvement.
Statements:
Amit is a good fielder.
All fielders have big hands.
Conclusions:
I. All people with big hands are field...
Statement: E> T ≥ H = N> I ≤ C
Conclusion:
i) E> i
ii) T Select the correct option from the following.
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Which of the following numbers will replace the question mark (?) in the given series?
11, 22, 25, ?, 105, 630
The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are f...
Identify the diagram that best represents the relationship among the given classes.
Author, Mother, Female
A group of 8 students, J, K, L, M, N, O, P and Q are sitting in two parallel rows facing each other. Each row has four students. Q and N are facing each...
How many classes are there in the given picture?
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE : Operations should be performed ...
The sequence of folding a piece of paper and the manner in which the folded paper has been cut is shown below. Choose a figure which would most closely ...
