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-3 section-7

The central value of a serially arranged series is known as

A) Arithmetical mean B) Mode C) Median D) Quartile

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Answer & Solution

Answer: Option C

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In comparison of secondary data, the primary data are

A) less reliable B) more reliable C) are equally reliable D) None of these

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Answer & Solution

Answer: Option B

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There will be positive correlation in X and Y, if

A) both the variables are varying in the same direction B) variables are varying in opposite direction C) there is no certain trend of changes in both variables D) None of the above

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Answer & Solution

Answer: Option A

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Classification of data may be

A) Geographical B) Qualitative C) Quantitative D) All of the above

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Answer & Solution

Answer: Option D

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Assertion (A) Standard deviation is independent of change of origin.
Reason (R) The value of standard deviation remains the same, if in a series each the observation is increased or decreased by a constant quantity.

A) Both (A) and (R) are true B) Both (A) and (R) are true, but (R) is not the correct explanation of (A) C) Both (A) and (R) are false D) (A) is true, but (R) is false

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Answer & Solution

Answer: Option A

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An investigator collects data himself or through his agents by contacting and interviewing students and the same data has been collected by the student union and the investigator obtains the data from the students union officer.

A) Data collected is regarded as primary and secondary data respectively B) Data collected is regarded as secondary and primary data respectively C) In both the cases the data collected is known as Primary data D) In both the cases the data collected is known as secondary data E) As per the interpretation of the investigator the primary or secondary nature of data so collected is to be decided

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Answer & Solution

Answer: Option A

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In this the value of rank correlation coefficient will be

Rank X	5	3	4	8	2	1	7	10	6	9
Rank Y	3	7	5	9	2	4	1	10	8	6

A) +0.52 B) +0.62 C) +0.42 D) +0.72

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Answer & Solution

Answer: Option A

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The mean of 15 numbers was found to be 15. If two numbers 18 and 12 are taken out, then the mean of remaining numbers will be

A) 10 B) 12 C) 15 D) 25

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Answer & Solution

Answer: Option C

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To calculate the arithmetic mean, there should be class differences

A) Exclusive B) Unequal C) Equal D) All the above

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Answer & Solution

Answer: Option D

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The absolute value of the difference between an unbiased point estimate and the corresponding population parameter is known as a

A) Population error B) Standard error C) Sampling error D) None of the above

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Answer & Solution

Answer: Option C

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