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PYQs Based Test - 20 : Correlation and Regression Analysis — Free Mock Test (GATE EC) | ExamTest.live | ExamTest.live

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PYQs Based Test - 20 : Correlation and Regression Analysis

Questions

Duration

180 min

Total Marks

Negative

−0.25

Topics Covered

General(10)

Sample Questions from this Test

$Find the coefficient of correlation if given, cov(x, y) = 420, σ_{x}^{2} = 484, and σ_{y}^{2} = 441$ View solution & explanation →
$If a constant 2 is subtracted from each of the value of x and y the regression coefficient is$ View solution & explanation →
$For a bivariate data set on (x, y), if the means, standard deviations and correlation coefficient are x̅ = 1.0, y̅ = 2.0, s ₓ= 3.0, s_{y} = 9.0, r = 0.8 Then the regression line of y on x is:$ View solution & explanation →

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Test Instructions

The test contains 10 questions and a total of 16 marks.
You will have 180 minutes to complete the test. The timer cannot be paused once started.
Negative marking: 0.25 mark(s) deducted per wrong answer.
Use the question palette to mark questions for review and navigate freely.
Detailed solutions and analytics are available immediately after submission.
This is a free practice test. No login required to attempt.

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✓ 10 questions, 180 min
✓ Sectional navigation
✓ Detailed solutions on submit
✓ Performance analytics

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