Q.What are the functions of Statistics ?

Statistics presents facts numerically, condenses data, enables comparison, measures relationships and helps forecasting and policy.

The main functions of statistics are:

• Presents facts in definite form: it expresses facts in precise numerical terms rather than vague statements, giving them exactness.
• Simplifies mass data: large volumes of data are condensed into a few figures such as averages, percentages and totals that are easy to understand.
• Facilitates comparison: tools like averages, ratios and index numbers allow comparison of two or more sets of data over time or between regions.
• Studies relationships: methods such as correlation and regression measure the relationship between variables.
• Helps in forecasting: trends and past data enable prediction of future events. …