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

A. $$\frac{{\sigma y}}{{\sigma x}}$$

B. $$r{\left( {\frac{{\sigma x}}{{\sigma y}}} \right)^2}$$

C. $$r{\left( {\frac{{\sigma y}}{{\sigma x}}} \right)^2}$$

D. $$r\frac{{\sigma x}}{{\sigma y}}$$

A. $${L_1} + {L_2}$$

B. $${L_1} - {L_2}$$

C. $$\frac{{{L_1} + {L_2}}}{2}$$

D. $$\frac{{{L_1} - {L_2}}}{2}$$

A. $$\overline X + b$$

B. $$\overline X - b$$

C. $$\frac{{\overline X }}{b}$$

D. None of these

A. one tailed test

B. two tailed test

C. Both A and B

D. None of these

A. -0.6

B. -0.3

C. 0.3

D. 0.5

A. Bowley

B. King

C. Seligman

D. None of these

A. Informational

B. Interpretative

C. Routine

D. Progress

A. $$\sigma = \frac{1}{N}\sqrt {\frac{{\sum {d^2}x}}{N} - {{\left( {\frac{{\sum dx}}{N}} \right)}^2}} $$

B. $$\sigma = \frac{1}{N}\sqrt {\sum {d^2}x - {{\left( {\sum dx} \right)}^2}} $$

C. $$\sigma = \sqrt {\frac{{\sum {d^2}x}}{N} - {{\left( {\overline x - A} \right)}^2}} $$

D. $$\sigma = \sqrt {\frac{{\sum {d^2}x - N{{\left( {\overline x - A} \right)}^2}}}{N}} $$

A. More than one

B. Equal to one

C. Less than one

D. Equal to minus one

A. overlap

B. coincide

C. Both A and B

D. None of these