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-2 section-4

Co-variance between two variables is:

A) The average of the product of deviations taken from their averages B) A is further divided by the product of their standard deviations C) A is further divided by the product of their arithmetic averages D) None of the above

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Answer & Solution

Answer: Option A

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For symmetrical distribution which of the following is true?

A) Median - Q₁ = Q₃ - Median B) Mode - Q₁ = Q₃ - Median C) Mean - Q₁ = Q₃ - Mode D) None of the above

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Answer & Solution

Answer: Option A

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When two regression coefficients bear same algebraic signs, then correlation coefficient is:

A) Positive B) Negative C) According to two signs D) Zero

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Answer & Solution

Answer: Option C

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F-test is used to test the significance of the differences between/among:

A) Two sample mean B) More than two samples mean C) Variance of two samples D) Both B and C

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Answer: Option D

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Which of the following is an assumption of one-way ANOVA comparing samples from three or more experimental treatments?

A) The samples associated with each population are randomly selected and are independent from all other samples B) The response variable within each of the k populations have equal variances C) All the response variables within the k populations follow a normal distribution D) All of the above

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Answer & Solution

Answer: Option D

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Which of the following measure of central tendency may not be contained in the observation?

A) Mean B) Median C) Mode D) All of these

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Answer & Solution

Answer: Option D

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The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is:

A) Maximum B) Minimum C) Zero D) Positive

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Answer & Solution

Answer: Option B

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The measures used to calculate the variation present among the observations in the unit of the variable is called:

A) Relative measures of dispersion B) Coefficient of skewness C) Absolute measures of dispersion D) Coefficient of variation

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Answer & Solution

Answer: Option C

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From the following data, calculate coefficient of correlation.

X	1	2	3	4	5
Y	10	20	30	40	50

A) 0.9 B) 0.8 C) 0.6 D) 10.1

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Answer & Solution

Answer: Option A

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If the ranks of two attributes in a sample are as follows

R₁	1	2	3	4	5
R₂	5	4	3	2	1

Then the rank correlation between the two will be

A) 0 B) +1 C) -1 D) None of these

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Answer: Option C

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