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

A. Regression

B. S. E.

C. S. D.

D. None of them

A. T' test

B. F' test

C. Chi-square' test

D. None of these

A. Statements I, II and III

B. Statements I and III

C. Statements II and III

D. Statements I and II

A. P(B) × P(A/B)

B. P(B) × P(A)

C. P(A) + P(B)

D. None of these

A. Questionnaire

B. Schedule

C. Interview

D. All the above

A. $$\frac{{\left( {1 - {r^2}} \right)}}{{\sqrt n }}$$

B. $$\sqrt {\frac{{\left( {1 - {r^2}} \right)}}{{\left( {n - 2} \right)}}} $$

C. $$0.6745\left( {\frac{{1 - {r^2}}}{{\sqrt n }}} \right)$$

D. $$\sqrt {\frac{{\left( {n - 2} \right)}}{{\left( {1 - {r^2}} \right)}}} $$

A. Only 2 possible outcomes

B. Have a constant probability of success

C. Must have at least 3 trials

D. Trials must be independent

A. In a moderately asymmetrical distribution, the empirical relationship between mean, mode and median suggested by Karl Pearson is Mean - Mode = 3 (Mean - Median)

B. Coefficient of variation is an absolute measure of dispersion

C. Measure of skewness indicates the direction and extent of skewness in the distribution of numerical values in the data set

D. Kurtosis refers to the degree of flatness or peakedness in the region around the mode of a frequency curve

A. Market power

B. Price

C. Price-Marginal cost

D. None of the above

A. $$\frac{{\sum {{{\left( {x - \overline x } \right)}^2}} }}{N}$$

B. $$\frac{{{{\left( {x - \overline x } \right)}^3}}}{N}$$

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

D. None of these