Statistical Dat Descriptive Statistics Essay

1051 Words Nov 22nd, 2016 5 Pages
Introduction
Statistics is the practice or science of collecting and analyzing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample. The following paper seeks to provide basic knowledge in some specific areas of statistical data analysis.
Descriptive statistics
Descriptive statistics is the term given to the analysis of data that helps describe, show or summarize data in a meaningful way. Descriptive statistics do not allow us to make conclusions beyond the data we have analyzed or reach conclusions regarding any hypotheses we might have made. They are just simply a way to describe our data. When data is presented to its users, it can be hard to understand in the raw form. Sometimes the size and volume of data may cause it to be hard to understand. Descriptive statistics allows the user to understand the material presented. For example, if we had the results of 100 pieces of students ' coursework, we may be interested in the overall performance of those students. We would also be interested in the distribution or spread of the marks. Descriptive statistics allow us to do this. Following are two most common types of statistics used to describe data:
Measures of central tendency: These are the measures to describing central position of frequency distribution for a group of data. In this case, the frequency distribution is simply the distribution and pattern of marks scored by the 100…

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