Business Statistics And Research Methods - Practice Test

[#361] Correlation coefficient is measure of

(A) Relationship between two variables

(B) Linear relationship between two variables

(C) Independence between two variables

(D) Dependence between two variables

Correct Answer

(B) Linear relationship between two variables

[#362] Which of the following is NOT a part of measuring the central tendency?

(A) Weighted Average

(B) Mean

(C) Median

(D) Harmonic Mean

Correct Answer

Weighted Average

[#363] The average of the squared deviations from the arithmetic mean is called:

(A) Mean deviation

(B) Variance

(C) Standard deviation

(D) Quartile deviation

Correct Answer

(B) Variance

[#364] X measures Wages in Rupees

(A) Unit of its average is Rs. and unit of variance is Rs.

(B) Unit of its average is Rs. and unit of variance is Rs. Square

(C) Unit of its average is Rs. but variance does not have any unit

(D) Unit of its average is Rs. but unit of variance is square not of Rs.

Correct Answer

(C) Unit of its average is Rs. but variance does not have any unit

[#365] Which of the following relation is correct?

(A) $$overline X = sqrt {G.M. imes H.M.} $$

(B) $$G.M. = frac{{overline X + H.M.}}{2}$$

(C) $$G.M. = sqrt {overline X .H.M.} $$

(D) $$H.M. = sqrt {overline X .G.M.} $$

(E) M.D. = $$frac{3}{4}$$ S.D.

(F) M.D. = $$frac{4}{3}$$ S.D.

(G) M.D. = $$frac{4}{5}$$ S.D.

(H) M.D. = $$frac{5}{4}$$ S.D.

Correct Answer

(C) $$G.M. = sqrt {overline X .H.M.} $$
(G) M.D. = $$frac{4}{5}$$ S.D.

Business Statistics And Research Methods - Study Mode

[#361] Correlation coefficient is measure of

Correct Answer

[#362] Which of the following is NOT a part of measuring the central tendency?

Correct Answer

[#363] The average of the squared deviations from the arithmetic mean is called:

Correct Answer

[#364] X measures Wages in Rupees

Correct Answer

[#365] Which of the following relation is correct?

Correct Answer