Statistics for the Utterly Confused

Statistics for the Utterly Confused
Lloyd R. Jaisingh, PhD | ISBN: 0-07-143094-6 | 337 pgs | 9 mb

For us to have an understanding of what the subject of statistics is all about, we need to introduce some terminology. First we will explain what we mean by the subject of statistics. Explanation of the term-statistics: Statistics is the science of collecting, organizing, summarizing, analyzing, and making inferences from data.

The subject of statistics is divided into two broad areas that incorporate the collecting, organizing, summarizing, analyzing, and making inferences from data. These categories are descriptive statistics and inferential statistics.

In order to obtain information, data are collected from variables used to describe an event. Explanation of the term-data: Data are the values or measurements that variables describing an event can assume.

Variables whose values are determined by chance are called random variables. There are two types of variables: qualitative variables and quantitative variables. Qualitative variables are nonnumeric in nature. Quantitative variables can assume numeric values and can be classified into two groups: discrete variables and continuous variables. A collection of values is called a data set, and each value is called a data value.
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