Constructing Frequency Tables (2012)

A frequency table is a way of summarizing a set of data. It is a record of each value (or set of values) of the variable in the data/question. In this post, we will learn about the ways of Constructing Frequency Tables for discrete and continuous data. A grouping of …

Read Complete Post

Pie Chart | Visual Display of Categorical Data

A pie chart is a way of summarizing a set of categorical data. It is a circle that is divided into segments/sectors. Each segment represents a particular category. The area of each segment is proportional to the number of cases in that category. It is a useful way of displaying …

Read Complete Post

The Word Statistics Meaning and Use

The post is about “The Word Statistics Meaning and Use”. The word statistics was first used by German scholar Gottfried Achenwall in the middle of the 18th century as the science of statecraft concerning the collection and use of data by the state. The word statistics comes from the Latin …

Read Complete Post

P value and Significance Level

Difference Between the P value and Significance Level? Basically in hypothesis testing the goal is to see if the probability value is less than or equal to the significance level (i.e., is p ≤ alpha). It is also called the size of the test or the size of the critical …

Read Complete Post