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

A. $$Z = 2M - \overline X $$

B. $$Z = 4M - \overline X $$

C. $$Z = M - \overline {4X} $$

D. $$Z = 3M - \overline {2X} $$

A. the exact value of the response variable can be computed

B. the computed response to the independent value will always give a minimal residual

C. the computed value of y will always be the best estimate of the mean response

D. none of these alternatives is correct

A. 1, 4 and 5

B. 2, 3 and 4

C. 3, 4 and 5

D. 1, 2 and 3

A. var(x) = n - 2/μp³

B. var(x) = xn/μp²

C. var(x) = 2n/μp²

D. var(x) = n + 2/μp²

A. Both (A) and (R) are correct

B. Both (A) and (R) are true, but (R) is the correct explanation of (A)

C. (A) is true, but (R) is false

D. (A) is false, but (R) is true

A. $$\frac{6}{{36}}$$

B. $$\frac{5}{{36}}$$

C. $$\frac{4}{{36}}$$

D. $$\frac{3}{{36}}$$

A. decrease, increase

B. increase, decrease

C. decrease, decrease

D. increase, increase

A. Frequency polygon

B. Histogram

C. Cumulative frequency curves (ogives)

D. None of the above

A. Leptokurtic

B. Platykurtic

C. Mesokurtic or normal

D. Positively skewed

A. P₁₂ × P₂₁ × P₃₂ = 1

B. P₁₂ × P₃₂ × P₃₁ = 1

C. P₁₂ × P₂₃ × P₃₁ = 1

D. P₁₂ × P₂₃ × P₁₃ = 1