Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

A. When value of correlation coefficient is one, the two regression lines coincide

B. The regression coefficients are independent of the change of origin and of scale

C. The sign of the regression coefficients are always the same

D. The square of the coefficient of correlation is called coefficient of determination

A. 9

B. 10

C. 20

D. According to the information required

A. 64

B. 16

C. 0

D. 6

A. $$\sqrt {{\text{npq}}} $$

B. npq

C. n²p²q²

D. np

A. 25.5 cm

B. 27 cm

C. 28.5 cm

D. None of the above

A. Origin

B. Scale

C. Both A and B

D. None of these

A. equal to

B. less than

C. greater than

D. not related to

A. similar, different

B. different, similar

C. similar, similar

D. different, different

A. Variance

B. Range

C. Quartile deviation

D. Mean deviation

A. L + S/L × S

B. L + S/L - S

C. L - S/L + S

D. L × S/L + S