Statistics is the DNA of the business, associations, or of a country. It's all data works just like arteries and veins works in our body. The way of showing the data is in the form of bar diagram, histogram, pie diagram, frequency polygon, and ogives, measurement of central tendency like mean mode, and median, properties of data like standard and deviations, correlation coefficient, etc. Here in this e-book Statistics Part-1, you can study all kinds of statistical graphs and measurements of central tendencies ,mean,mode and medians.