Business-Statistics-and-Research-Methods MCQs

Commerce Objective Questions

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918. If for a sample data : Mean < Median < Mode, then the distribution is-

A. Skewed to the right

C. Skewed to the left

D. Neither symmetric nor skewed

919. When regression line passes through the origin, then:

A. Intercept is zero

B. Regression coefficient is zero

C. Correlation is zero

D. Association is zero

920. The level of significance is the probability of committing

A. type I error

B. type II error

C. type III error

D. None of these

921. If P(B/A) = p(b), then P(A $$ \cap $$ B) =?

C. p(b) × p(a)

922. Research is:

A. Searching again and again

B. Finding solution to any problem

C. Working in a scientific way to search for truth of any problem

D. None of the above

923. Given the following numbers
2, 8, 6, 5, 0, 9, 7, 11
The product of their arithmetic and geometric means is

924. Which one of the following formulae is used to calculate probable error of correlation coincident between two variables of 'n' pairs of observations?

A. $$0.6745\left[ {\frac{{1 - {r^2}}}{{\sqrt n }}} \right]$$

B. $$0.5758\left[ {\frac{{1 - {r^2}}}{{\sqrt n }}} \right]$$

C. $$0.675\left[ {\frac{{1 - {r^2}}}{n}} \right]$$

D. $$0.5758\left[ {\frac{{1 - {r^2}}}{n}} \right]$$

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