Business Statistics and Research Methods MCQs

A statistical enquiry or investigation has to pass through in which of the following sequence? 1. Planning and statistical investigation 2. Editing and presenting data 3. Collection of data 4. Analysis of data 5. Interpretation and presentation of report Select the correct answer using the optopns given below

The mean of an examination is 69, the median is 68, the mode is 67, and the standard deviation is 3. The measure of variation for this examination is:

The middle value of an ordered array of numbers is the

Correlation is said to be linear, when the

Match the following. List-I List-II a. Range 1. Summing up the consecutive frequencies b. Width of the interval 2. Range/Number of classes c. Open ended class 3. Highest value-lowest value in data d. Cumulative frequency 4. No lower limit of first group or no upper limit of the last group

In case of unequal term values-

A histogram is constructed from a frequency distribution and is

Who said, "Statistics is the science of estimates and probabilities."

Harmonic mean is calculated by dividing the number of observations by the reciprocal of each number in the series. Thus, the harmonic mean is: