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Statistics - Coggle Diagram
Statistics
Types of statistics
Descriptive Statistics: Methods of organizing, summarizing, and presenting data in an informative way
Descriptive statistics are used to collect data, present data and summarize data
Inferential Statistics: The methods used to determine something about a population on the basis of a sample
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Statistical data
The collection of data that are relevant to the problem being studied is commonly the most difficult, expensive, and time-consuming part of the entire research project.
Qualitative data
Qualitative data are generally described by words or letters. They are not as widely used as quantitative data because many numerical techniques do not apply to the qualitative data
Numerical presentation of qualitative data
pivot table (qualitative dichotomic statistical attributes)
contingency table (qualitative statistical attributes from which at least one of them is polynomic)
Quantitative data
Quantitative data are always numbers and are the
result of counting or measuring attributes of a population.
numerical presentation of quantitative data
Frequency distribution – shows the frequency, or a number of occurrences, in each of several categories.
When the raw data are measured on a quantitative scale, either interval or ration, categories or classes must be designed for the data values before a frequency distribution can be formulated.
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Statistics are the science of collectiong, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions
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