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What SPSS procedures can be used for data screening of categorical variables?
variance
Besides the term bell curve what other descriptive term can be used for showing how a data set as a whole is spread around the mean?
Variance
What describes the spread of data?
Range, variance, and standard deviation usually are used to describes the spread of data.
Is sigma square equal to variance?
Yes, sigma squared (σ²) represents the variance of a population in statistics. Variance measures the dispersion of a set of values around their mean, and it is calculated as the average of the squared differences from the mean. In summary, σ² is simply the symbol used to denote variance in statistical formulas.
What do you mean by data integrity?
Data integrity is a term used in databases. In its broadest use, "data integrity" refers to the accuracy and consistency of data stored in a database, data warehouse, data mart or other construct. The term - Data Integrity - can be used to describe a state, a process or a function - and is often used as a proxy for "data quality".
