Business-Statistics-and-Research-Methods MCQs

Commerce Objective Questions

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827. The correlation coefficient in the two variable X and Y is 0.74. This is

A. High level of positive correlation

B. High level of negative correlation

C. Middle level of positive correlation

D. Low level of negative correlation

828. Poisson distribution is applied for:

A. Continuous Random Variable

B. Discrete Random Variable

C. Irregular Random Variable

D. Uncertain Random Variable

829. 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

830. 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:

831. Which of the following is not a property of the arithmetic mean?

A. Its variance is no larger than the variance of the population distribution

B. It is always equal to the population mean

C. It is unbiased

D. Its variance becomes smaller when the sample size gets bigger

832. Statistical data are used for knowing about the progress in the

A. techniques of production

B. volume of production

C. imports and exports

D. All of these

833. Median - Mode = 2 (Mean - . . . . . . . . )

D. None of these

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