Descriptive Statistics

Descriptive statistics aim at summarizing a set of data (sample) by characteristic measures such as sample sizecentral tendency (mean, median) data spread (range, variance, standard deviation). Learn more about this topic in our Basic Statistics Online...

Mode

The mode is a measure of central tendency. It represents the value with the highest number of occurences. Read also: Mean, median Learn more about this topic in our Basic Statistics Online...

Median

The median is a measure of central tendency. It divides a distribution into two equal halves and can be thought of as the “middle” value of a data set. Calculation: Step 1: Arrange your data in an ascending orderStep 2: For an odd number of observations:...

Discrete Data

Discrete data are count data meaning that observations with a certain attribute can be counted. They are frequently described using proportions (%, ppm), e.g. 56 good observations, and 11 bad observations result in 84% yield. Read also: Continuous data Learn more...

Continuous Data

Continuous data are usually measured data, where a scale and a unit make sense. They can be described using: measures of central tendency (arithmetic mean, median, mode)measures of variability (range, standard deviation, variance) Read also: Discrete data Learn more...