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

A. E(c) + E(x)

B. E(c) × E(x)

C. CE(x)

D. None of these

A. $$\frac{{\sum \left| {\overline x - x} \right|}}{N}$$

B. $$\frac{{\sum \left| {x - \overline x } \right|}}{N}$$

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

D. None of the above

A. $$\frac{{{Q_3} + {Q_1} - M}}{{{Q_3} - {Q_1}}}$$

B. $$\frac{{{Q_3} + {Q_1} - 2M}}{{{Q_3} + {Q_1}}}$$

C. $$\frac{{{Q_3} + {Q_1} - 2M}}{{{Q_3} - {Q_1}}}$$

D. $$\frac{{{Q_3} + {Q_1} - 3M}}{{{Q_3} - {Q_1}}}$$

A. Z-test

B. T-test

C. Chi-square test

D. F-test

A. 1 and 2

B. 2 and 3

C. 3 and 4

D. 2, 3 and 4

A. White lie

B. Black lie

C. Multi lie

D. Rainbow lie

A. Figure

B. Diagram

C. Classification

D. Tabulation

A. Judgment sample

B. Simple random sample

C. Cluster sample

D. Stratified random sample

A. arithmetic mean

B. median

C. mode

D. none of these

A. 0.48

B. 0.52

C. 0.60

D. 0.92