Business Statistics and Research Methods MCQs

The sum of squared deviation is the least when taken from

Alternative hypothesis is expressed by:

Match the following. List-I (Terms) List-II (Explanations) a. Unimodal 1. The distribution that can take a limited number of values which can be listed b. Discrete probability distribution 2. The curve has a single peak c. Continuous probability distribution 3. Where variable is allowed to take any value within given range

The average speed of the train is calculated by

If Laspeyre's Index No. is 121 and Paasche's Index No. is 144 then Fisher's Index No. is

If 'm' is the mean of a Poisson Distribution, the standard deviation is given by

Chi-square is to be applied only, when the individual observations of sample are

If sum of the product of deviations of x and y series from their means, i.e., Σxy is zero, the coefficient of correlation shall be

Consider the following statements. Assertion (A): A reasonably sized sample drawn randomly from large sized population contains almost all the characteristics which exist in the population. Reason (R): The theory of sampling is based on the two important laws of statistics, viz., Law of statistical regularity and law of inertia of large numbers.