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What is statistics?
the science of collecting , classifying, presenting, and interpreting numerical data
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Data
The set of values collected for the variable from each of the elements belonging to the sample
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Population
a collection of individuals, or measurements whose properties are to be analyzed
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Sample
a subset or portion of a population
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Experiment
a planned activity whose results produce a set of data
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Quantitive Data
The responses that are measured on numerical scale
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Qualitative Data
The responses that cannot be measured on numerical scale. They can be classified into categories
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Parameter
a numerical characteristic of an entire population
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Statistic
a numerical characteristic of a sample
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Statistical Inference
It is an estimate, prediction, or conclusion about a population, based on information obtained from a sample
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Measure of Reliability
It is a statement about the degree of uncertainty associated with statistical inference or conclusion
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