Statistics can be described as a science of data and it involves collecting, classifying, summarizing, organising and interpreting numerical information. The collection of all these data is to make decisions.
Data is a set of information which could be numerical or other forms.
Statistics is used in every field as it is used scientifically and non-scientifically.
The types of Statistics includes:
- Descriptive Statistics
- Inferential Statistics
Descriptive statistics makes use of numerical and graphical methods to look for patterns in a data set, to summarize the information reviewed in a data set and to present the information in a convenient form that individuald can use to make decisions.
Inferential Statistics utilizes sampled data to make estimates, descriptions, predictions and other generalizations aboit a larger set of data.
When we talk about measures of central tendency, we talk about the following:
- mean: this is the arithmetic average of scores
- mode: is the most frequently occuring score
- median: is the middlepoint in an ordered distribution
When we talk about charts, we talk about:
- frequency polygon
- histogram
- barchart
- piechart, etc
In statistics, so many things are sorted for. To some extent, we have:
- measures of variability
- standard deviation
- probability, etc
We use statistics in all aspect of love.
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