Business Statistics and Research Methods MCQ Questions and Solutions with Explanations

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

Business Statistics and Research Methods MCQ Questions and answers with easy and logical explanations. Commerce provides you all type of quantitative and competitive aptitude mcq questions with easy and logical explanations. Business Statistics and Research Methods MCQ is important for exams like B.COM, M.COM, BBA, BBM, CA, CS, CMA, CPA, CFA, UPSC, NET, Banking and other commerce department exam. Page-1 section-6

If E(x) is the mathematical expectation of the variable X and C is constant then E(CX) = ?

A) E(c) + E(x) B) E(c) × E(x) C) CE(x) D) None of these

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Answer & Solution

Answer: Option C

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Standard deviation can be expressed as

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

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Answer: Option C

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Bowley's Coefficient of skewness is calculated by following formula.

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) $$\frac{{{Q_3} + {Q_1} - 3M}}{{{Q_3} - {Q_1}}}$$

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Answer & Solution

Answer: Option C

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Which of the following test is used to test the significance of the coefficient of association?

A) Z-test B) T-test C) Chi-square test D) F-test

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Answer: Option B

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Given the following tests
1. z-test
2. t-test
3. chi-square test
4. F Test
The concept of degrees of freedom is associated with:

A) 1 and 2 B) 2 and 3 C) 3 and 4 D) 2, 3 and 4

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Answer & Solution

Answer: Option D

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In the context of lies "statistics" is called:

A) White lie B) Black lie C) Multi lie D) Rainbow lie

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Answer & Solution

Answer: Option B

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Sorting the related facts into classes is called-

A) Figure B) Diagram C) Classification D) Tabulation

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Answer: Option C

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The chamber of commerce has arrived at a list of executives from the metropolitan area's top 50 firms to solicit their input for rejuvenating the centre city district. What kind of sampling method was used?

A) Judgment sample B) Simple random sample C) Cluster sample D) Stratified random sample

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Answer & Solution

Answer: Option A

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Histogram is useful to determine graphically the value of:

A) arithmetic mean B) median C) mode D) none of these

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Answer: Option C

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In a student survey, 40% of the student are male and 80% are CA candidates. The probability that a student chosen at random is either female or a CA candidate is:

A) 0.48 B) 0.52 C) 0.60 D) 0.92

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Answer: Option D

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