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-8 section-11

Which average is most affected by extreme values?

A) Arithmetic mean B) Geometric mean C) Harmonic mean D) Mode

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Answer & Solution

Answer: Option A

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Which of the following approach of probability assumes 'degree of belief'?

A) Classical approach B) Relative frequency approach C) Subjective approach D) All of the above

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Answer: Option C

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A commuter drives 10 miles on first day at a speed of 60 km/hour, the second day at 15 km/hour and third day 10 km/hour. The mean speed of the commuter is

A) 16.32 B) 42.50 C) 36.35 D) 22.10

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Answer: Option A

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The mode of 2, 4, 2, 3, 1 is

A) 2 B) 24 C) 3 D) 34

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Answer: Option A

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If variance is 144, then the standard deviation will be

A) 2 B) 12 C) 72 D) 288

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Answer: Option B

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When a population is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups, and some items are selected at random from each group. It is a case of:

A) Cluster Random Sampling B) Systematic Random Sampling C) Quota Sampling D) Stratified Random Sampling

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Answer: Option D

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If all values of a variable are multiplied by a given number, which one of the following will NOT be effected?

A) Mean B) Median C) Range D) Coefficient of variation

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Answer: Option D

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If A $$ \subset $$ B and B $$ \subset $$ A, then:

A) P(A) > P(B) B) P(A) < P(B) C) P(A) = P(B) D) None of the above

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Answer: Option C

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Which of the following is a causes of correlation?

A) Direct relationship B) Correlation due to any other common cause C) Mutual reaction D) None of the above

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Answer: Option A

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Match the items of List-I and List-II and indicate the correct matching of the items.

List-I	List-II
a. $$\frac{{{z^2} \cdot \sigma _p^2}}{{{e^2}}}$$	1. Measurement for Kurtosis
b. $$\frac{{\left\| {\overline {{X_1}} - \overline {{X_2}} } \right\|}}{{\sqrt {\sigma _p^2\left( {\frac{1}{{{n_1}}} + \frac{1}{{{n_2}}}} \right)} }}$$	2. Calculated value of F ratio
c. $$\frac{{{\mu _4}}}{{\mu _2^2}}$$	3. Statistical approach to find out the size of sample
d. $$\frac{{\sigma _1^2}}{{\sigma _2^2}}$$	4. Calculated z value of mean differences

A) a-1, b-2, c-3, d-4 B) a-2, b-4, c-3, d-1 C) a-3, b-4, c-2, d-1 D) a-3, b-4, c-1, d-2

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Answer: Option D

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