Statistics

This chapter covers topics like methods of finding arithmetic mean for different type of data

This chapter covers topics like computation of mean deviation, standard deviation and variance, etc.

This chapter deals with the organization of data in different forms. It highlights the method of obtaining tally marks and explains the concept of frequency. We will also come across the pictorial representation of data via examples.

This chapter covers topics like positive and negative correlation, methods of studying correlation, correlation coefficient, third formula, spearman's rank correlation coefficient, and correlation for tied ranks.

This chapter covers topics like introduction to index numbers, uses and classification of index numbers, construction of index numbers, unweighted methods of constructing index numbers, weighted index numbers, and weighted aggregate method.

This chapter covers topics like variations, moving averages, and procedure for calculating moving averages.