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Statistics - Coggle Diagram
Statistics
Introduction to Statistics 
What is Statistics?
Statistics is the science that studies data sets and their interpretation in mathematical terms
Applications of Statistics
Statistics is a powerful auxiliary to many human sciences and activities: sociology, psychology, human geography, economics, and so on.
Divisions of Statistics
Descriptive statistics
Those methods that include the collection, presentation and characterization of a data set in order to appropriately describe the various characteristics of that set.
Inductive Statistics or Statistical Inference Those methods that make it possible to estimate a characteristic of a population or to make a decision regarding a population based only on the results of a sample.
Data Collection and Presentation
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Histograms
Histograms are vertical bar diagrams in which rectangular bars are constructed at the boundaries of each class.
Polygons
A polygon is a graph that connects the midpoints at the top of the histogram bars with lines.
Bar charts
In the bar graph, each category is described by a bar, the length of which represents the frequency or percentage of observations that fall into a category.
Pie chart
A pie or pie chart is a circle divided into parts that represent the relative frequency or percentage of the different categories.
Measures of central tendency
Average or Average
The mean is an average. It is calculated by adding all the data and then dividing the total by the number of data involved.
Median
It is the mean value of an ordered sequence of data. If there are no ties, half of the observations will be lower and the other half will be higher.
Fashion
In a data series, the mode is the value that is repeated the most, the one that appears most frequently.
Deviation Measures
Variance and Standard Deviation
The variance and standard deviation take into account how the observations are distributed..
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The Coefficient of Variation
One way of constructing a measure of variability that meets the above requirements is the so-called coefficient of variation