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Correlation and Regression MCQs for Competitive Exams

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Correlation and Regression MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

227 MCQs Page 22

Topic Notes: Correlation and Regression

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Correlation and Regression MCQs in Commerce are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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211
Calculate the coefficient of correlation for the following data: X={1,2,3,4,5}, Y={10,20,30,40,50}.
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212
Given the regression equations x = 0.85y and y = 0.89x, what is the coefficient of correlation?
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213
What is the statistical term for the measure that quantifies the strength and direction of the relationship between two variables?
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214
What type of correlation exists when the variations in two variables maintain a constant ratio?
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215
If the coefficient of non-determination (unexplained variation) between two variables X and Y is 36%, what is the coefficient of correlation?
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216
What is the correct logical sequence of steps to determine the correlation between two variables X and Y?
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217
If the probable error is 0.05 and the sample size (N) is 16, what is the correlation coefficient?
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218
What is the standard formula for calculating the probable error of the coefficient of correlation (r)?
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219
If two series change in the same direction, what type of correlation exists between them?
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220
In regression analysis, what term is used for the variable that explains changes in the outcome?
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