Business Statistics And Research Methods - Study Mode

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[#756] 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

Correct Answer

(C) Absolute measures of dispersion

[#757] 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

Correct Answer

(A) 0.9

[#758] If the ranks of two attributes in a sample are as follows R 1 1 2 3 4 5 R 2 5 4 3 2 1 Then the rank correlation between the two will be

(A) 0

(B) +1

(C) -1

(D) None of these

Correct Answer

(C) -1

[#759] Range is the measure of dispersion which is used for the following purpose. 1. Quality control of products. 2. Studying the fluctuation in financial and share market.

(A) Only 1

(B) Only 2

(C) Both 1 and 2

(D) None of the above

Correct Answer

(C) Both 1 and 2

[#760] If you want to check the uniformity of your students in terms of knowledge, which one test based on statistics would you consider for this purpose?

(A) Standard deviation

(B) Median

(C) Mean

(D) Mode

Correct Answer

(B) Median