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Q102 (CDS-I/2023) Economy › Basic Concepts & National Income › Probability and statistics Answer Verified

Meena wants to show diagrammatically how two sets of data, namely, population size and number of services are related to each other. Which one of the following will be the most suitable for the presentation?

Result
Your answer: —  Â·  Correct: B
Explanation

To diagrammatically show the relationship between two sets of quantitative data, such as population size and number of services, a scatter graph (or scatter plot) is the most suitable tool. A scatter plot displays the relationship between two quantitative variables measured on the same individuals, with one variable on the horizontal axis and the other on the vertical axis. It is specifically designed to identify bivariate relationships, correlations, and trends between numerical values. While bar charts are better for comparing discrete categories and pie charts for simple compositions, scatter graphs excel at visualizing how one numerical variable changes in relation to another [1]. In economic and statistical analysis, plotting such data allows for the identification of functional relations or patterns that might not be evident in raw tables.

Sources

  1. [1] Microeconomics (NCERT class XII 2025 ed.) > Chapter 2: Theory of Consumer Behaviour > EXAMPLE 2 > p. 22
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