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#14 DESCRIPTIVE STATISTICS

Descriptive statistics involves methods, that describe the central tendency and dispersion of data.  ...View More

#16 ESTIMATING MEAN AND STANDARD DEVIATION OF POPULATION

While we know the mean and standard deviation of our sample we don't know the real ones. That's why  ...View More

#17 Z DISTRIBUTION

With z transformation you can transform any kind of variable into a variable that has a mean of 0 an ...View More

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