Statistical notations

Statistical notations can be used in the marketing field.

Here are some basic standard statistical notations :
• N refers to total population size
• n refers to sample size
• The average of variable x is noted :
• The sum of xi for i=1 to n, is noted :
• The standard deviation of variable x is noted :
• The variance of variable x is noted :
• The product of xi for i=1 to n is noted :
• The coefficient of determination is noted :
• The correlation coefficient is noted r
• Absolute frequency is noted f and relative frequency is noted F