Functions of Statistics: 

1. Statistics presents facts in a definite form. 

2. It simplifies mass of figures. 

3. It facilitates comparison.

4. It helps in formulating and testing. 

5. It helps in prediction. 

6. It helps in the formulation of suitable policies.

(I) Statistics are an aggregate of facts: For example, numbers in a calendar pertaining to a year will not be called statistics, but to be included in statistics it should contain a series of figures with relationships for a prolonged period.

(II) Statistics are numerically enumerated, estimated and expressed. 

(III) Statistical collection should be systematic with a predetermined purpose: The purpose of collection of statistics should be determined beforehand in order to get accurate information.

(IV) Should be capable of being used as a technique for drawing comparison: It should be capable of drawing comparison between two different sets of data by tools such as averages, ratios, rates, coefficients etc.