Business Statistics and Research Methods MCQs

Arrange the following statements in chronological order. 1. Normal distribution was discovered by English mathematician De Moivre. 2. Rediscovered and applied in Science, both natural and social and in parochial affairs by Laplace. 3. Normal distribution was extensively development and utilised by Carl Friedrich Gauss.

Consider the following statements. Statement-I: When the null hypothesis is true but as per the hypothesis-testing, it is rejected, it is known as beta type error in hypothesis testing. Statement-II: Chi-square test is exclusivelya non-parametric test.

Which amongst the following is not the source of secondary data?

Summary and presentation of data in tabular form with several non-overlapping classes is referred as

A sampling distribution is the probability distribution for which one of the following?

Karl Pearson correlation coefficient between X and Y is -0.75, the covariance is -15 and the standard deviation of series y is 5, then standard deviation of series X is will be

For two events A and B, if P(B) = 0.5 and P (A $$ \cup $$ B) = 0.5, then P (A|B) =?

Large sample theory is applicable when:

Match the following. List-I List-II a. Histogram 1. Line chart of frequency distribution b. Bar diagram 2. Data is represented in form of series of rectangle and is two dimensional c. Frequency polygon 3. Lengths of bars are proportional to their corresponding values d. Cumulative frequency curve 4. Graphic representation of a cumulative frequency distribution