ECAT Statistics Test Set 14

ECAT Statistics Test Set 14

ECAT Statistics SET 14 Online Test

Total Questions: 11
Time Allowed: 11 Minutes
Total Marks: 11
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Statistics SET 14 Test Online MCQs

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1.

If the correlation coefficient r = 0, the two regression lines are:

2.

If x and y are independent variables, then the two lines of regression are:

3.

If the two regression coefficients are 0.8 and 0.2, then coefficient of correlation r is:

4.

The two regression lines are identical if:

5.

If r between the lines of regressions of x on y and y on x, is ±1, then:

6.

If the equations of regression lines are y = 0.5x + a and x = 0.5y + b and xˉ=10\bar{x} = 10, yˉ=12\bar{y} = 12, then the values of a and b are respectively:

7.

If r = 1 or -1, the regression lines are:

8.

If r = 0, then:

9.

If the sum of the product of deviations of x and y series from their means is zero, the correlation coefficient will be:

10.

The two regression lines are perpendicular to each other if:

11.

The purpose of simple linear regression analysis is to:


 

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