Business Statistics and Research Methods MCQs

Question 1

Sampling error is . . . . . . . . in incomplete enumeration.

Accepted Answer

existent

Answer

non-existent

Answer

estimated

Answer

None of these

Question 2

Which one of the following tenets is not correct in the context of Central Limit Theorem?

Accepted Answer

If the population is not normal from which the sample is drawn, the SDM is not normal for any sample size

Answer

If a population from which a sample is drawn is normally distributed the sampling distribution of mean (SDM) will be normal for all sample sizes

Answer

The mean of the SDM is the population mean

Answer

If the population is not normal from which a sample is drawn, the SDM approaches normality as the sample size increases

Question 3

In regression, the equation that describes how the response variable (y) is related to the explanatory variable (x) is:

Accepted Answer

the regression model

Answer

the correlation model

Answer

used to compute the correlation coefficient

Answer

none of these alternatives is correct

Question 4

In a binomial distribution, if n = 7 and P = 0.6, then P(x = 7) will be equal to

Accepted Answer

(0.6)7

Answer

(0.6)6

Answer

(0.7)6

Answer

(0.4)7

Question 5

Which one of the following is a false description?

Accepted Answer

Coefficient of variation is an absolute measure of dispersion

Answer

In a moderately asymmetrical distribution, the empirical relationship between Mean, Mode and Median suggested by Karl Pearson is: Mean - Mode = 3 (Mean - Median)

Answer

Measure of skewness indicates the direction and extent of skewness in the distribution of numerical valuesin the data set

Answer

Kurtosis refers to the degree of flatness or peakedness in the region around the mode of a frequency curve

Question 6

The . . . . . . . . of the normal distribution occurs on the X-axis at a point, where the curve can reach the maximum height.

Accepted Answer

mean

Answer

median

Answer

mode

Answer

standard deviation

Question 7

The first census in India:

Accepted Answer

During the tenure of Lord Mayo

Answer

During the tenure of Lord Ripon

Answer

During the tenure of Lord Dafrin

Answer

During the tenure of Lord Littan

Question 8

The listing of the possible outcomes of an experiment and their corresponding probability is called:

Accepted Answer

Probability Distribution

Answer

Random Variable

Answer

Contingency table

Answer

Bayesian Table

Question 9

Poisson distribution is . . . . . . . . probability distribution.

Accepted Answer

discrete

Answer

individual

Answer

continuous

Answer

None of these