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Data wrangling, also known as data munging, is the process of cleaning, structuring, and transforming raw data into a format suitable for analysis. It includes tasks such as handling missing values, correcting data inconsistencies, and reshaping data, which are essential steps before performing any analysis. Proper data wrangling ensures that datasets are accurate, complete, and compatible with analytical methods, thereby enabling reliable results. This preparatory stage is foundational to any data-driven project, as quality data directly impacts the insights and conclusions drawn from the analysis. The other options are incorrect because: • Option 1 (Generating insights from visualizations) is part of data interpretation, not wrangling. • Option 2 (Applying machine learning) is part of modeling, which occurs after data wrangling. • Option 4 (Optimizing storage) is a data engineering task, unrelated to data wrangling. • Option 5 (Validating hypotheses) is part of analysis, not the initial data preparation process.
If
x + y means x is a brother of y
x – y means x is a daughter of y
x × y means x is a sister of y
x ÷ y means x...
Which of the answer figure is the text mirror image of the given problem figure when the mirror is held vertically at the left side of the figure?
...In the following question, select the missing number from the given series.
451, 472, 493, 514, ?, 556
After arranging the given words according to dictionary order, which word will come at 'Fourth' position?
1. Wheel
2. Wheat
3...
Select the option that is related to the third word in the same way as the second word is related to the first word.
Lazy : Hard-working : : Wealthy : ?
If C = 24 and HOT = 38, then FEAR = ?
In a certain code language, 'PQRS' is written as "HIJK'. How will 'XYZA' be written as in the same coding language?
A statement is followed by two conclusions, numbered I and II. Find out which of the following conclusion(s) is/are true based on the given statements.<...
In a code language, tomato is called brinjal, brinjal is called radish, radish is called cabbage and cabbage is called okra. Which one of the following ...
If 7 * 5 @ 10 # 20 = 370 and 4 * 3 @ 5 # 30 = 90, then
2 * 3 @ 4 # 5 = ?