Correlation and Regression (CA Foundation Maths, Statictics, Logic, and Reasoning): Questions 12 - 18 of 42

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Question number: 12

» Correlation and Regression

MCQ▾

Question

The method applied for deriving the regression equations is known as

Choices

Choice (4) Response
a.

Concurrent deviation

b.

Product moment

c.

Least squares

d.

Normal equation

Question number: 13

» Correlation and Regression

MCQ▾

Question

The correlation between shoe-size and intelligence is

Choices

Choice (4) Response
a.

Negative

b.

Positive

c.

Zero

d. None of the above

Question number: 14

» Correlation and Regression

MCQ▾

Question

Pearson’s correlation coefficient is used for finding

Choices

Choice (4) Response
a.

Correlation for linear relation only

b.

Correlation for curvilinear relation only

c.

Correlation for any type of relation

d. Question does not provide sufficient data or is vague

Question number: 15

» Correlation and Regression

MCQ▾

Question

For a p×q bivariate frequency table, the maximum number of marginal distributions is

Choices

Choice (4) Response
a.

2

b.

1

c.

p

d.

p + q

Question number: 16

» Correlation and Regression

MCQ▾

Question

What are the limits of the correlation coefficient?

Choices

Choice (4) Response
a.

–1 and 1

b.

No limit

c.

0 and 1, including the limits

d.

–1 and 1, including the limits

Question number: 17

» Correlation and Regression

MCQ▾

Question

The correlation between the speed of an automobile and the distance travelled by it after applying the brakes is

Choices

Choice (4) Response
a.

Zero

b.

Negative

c.

Positive

d. None of the above

Question number: 18

» Correlation and Regression

MCQ▾

Question

What are the limits of the two regression coefficients?

Choices

Choice (4) Response
a.

One positive and the other negative

b.

No limit

c.

Product of the regression coefficient must be numerically less than unity.

d.

Must be positive

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