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What is statistics?
the science of collecting , classifying, presenting, and interpreting numerical data

Data
The set of values collected for the variable from each of the elements belonging to the sample

Population
a collection of individuals, or measurements whose properties are to be analyzed

Sample
a subset or portion of a population

Experiment
a planned activity whose results produce a set of data

Quantitive Data
The responses that are measured on numerical scale

Qualitative Data
The responses that cannot be measured on numerical scale. They can be classified into categories

Parameter
a numerical characteristic of an entire population

Statistic
a numerical characteristic of a sample

Statistical Inference
It is an estimate, prediction, or conclusion about a population, based on information obtained from a sample

Measure of Reliability
It is a statement about the degree of uncertainty associated with statistical inference or conclusion

