Question
Why is Exploratory Data Analysis (EDA) considered a
crucial step in the data analysis process?Solution
Exploratory Data Analysis (EDA) is a foundational step in data analysis that enables analysts to uncover the structure, patterns, and relationships within the data. Through visualizations and descriptive statistics, EDA provides insights into the distribution of data, potential outliers, and correlations between variables. These insights are critical for determining the appropriate analysis approach or modeling technique. By examining data comprehensively, EDA facilitates hypothesis formation and guides subsequent data preprocessing, feature engineering, and model selection, enhancing the reliability of analytical outcomes. The other options are incorrect because: • Option 1 is incorrect as EDA does not predict outcomes; rather, it helps prepare and understand data for predictive modeling. • Option 2 is inaccurate since EDA supports data cleaning but does not automate it fully. • Option 4 is incorrect; EDA may reveal insights that prompt feature engineering. • Option 5 confuses EDA with data transformation processes like encoding categorical variables.
Consider the given paragraph and decide which of the given assumptions in the options is implicit in the paragraph.
The school, which used to ...
Consider the following series of letters and numbers.
ZBN#$MAL@23l8nS$59nhfpWn$#l 12EhaI
What comes at the 5th position to the right of ...
Statement:
A. Some fish are birds.
B. No cat is bird.
Conclusion:
I. No bird is cat.
II. Some birds are fish.
If a mirror is placed on the shaded line, which of the following options is the correct image of the given figure?
Select the figure from among the given that will come in place of the question mark (?) and logically complete the series
In a code language ‘SHE WON GOLD MEDAL’ is written as 'JRP VMT QMNZ KPZFN' then how will you write ‘DOME’ in this language?
Read the given statement and conclusions carefully. Decide which of the given conclusion/s is/are true based on the given statement.
Statement: ...
Three statements are given, followed by three conclusions numbered I, II and III.
Assuming the statements to be true, even if they seem to be at ...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Select the option figure which is embedded in the given figure (Rotation is NOT allowed).