Question

In the context of Project based learning, the following question has to be solved-
What is the total population, total male population and total female population aged 10 to 24 in India?
Arrange the following solution steps to accomplish the same:
A. Read CSV file and check the shape of the DataFrame.
B. Identify the columns and the number of rows that you wants to use for plotting.
C. Create a new DataFrame containing the filtered data and Group data as per the requirement.
D. Plot data for the DataFrame.

• A. A, B, C, D
• B. D, B, C, A
• C. B, A, D, C
• D. C, B, D, A

Hint:

Visualization is always the final step of a data science task.
Thus, "Plot data" (D) must occur at the end of the pipeline, which makes option (A) the logical choice.

Answer 1

The Correct Option is A

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Step 1: Understanding the Question:
The question asks to chronologically order the steps involved in a typical data analysis and plotting workflow when solving a real-world statistical problem in Python.

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Step 2: Key Formula or Approach:
A standard, logical data analysis cycle using Pandas and Matplotlib is structured as:
1. Data Acquisition: Load data and check its format.
2. Data Inspection: Identify relevant columns and rows.
3. Data Processing: Filter and aggregate (group) the target datasets.
4. Data Visualization: Plot the processed data for interpretation.

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Step 3: Detailed Explanation:
Let's map the given steps:
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Step 1: A (Read CSV and check shape): Before performing any analysis, the CSV file must be loaded using pd.read_csv(), and we check its layout using df.shape to verify the data is read correctly.
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Step 2: B (Identify columns and rows): We inspect the column labels (e.g., 'Age', 'Gender', 'Population') to determine which attributes are needed.
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Step 3: C (Filter and Group): We filter the age range between 10 and 24, and group the population by gender or other criteria to get totals.
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Step 4: D (Plot data): Finally, we visualize the aggregated numbers using charts like bar plots or line graphs.
Thus, the correct logical order is A $\rightarrow$ B $\rightarrow$ C $\rightarrow$ D.
This corresponds to option (A).

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Step 4: Final Answer:
The correct order is option (A).