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What is the difference between testing a single mean and testing the difference between two means?
A single mean is used in testing to compare a single variable to a population mean in order to determineÊif there is aÊdifference. Two means are used in testing to compare two populations to see if there are variances between the two variables.Ê
How do you find arithmetic mean between two numbers?
Add the two numbers and divide by two, or find the number which is halfway between the two numbers.
What does the dot between a two numbers mean?
multiplication
What is arithmetic mean and geometric mean?
The difference between arithmetic and geometric mean you can find in the following link: "Calculation of the geometric mean of two numbers".
What does correlation mean in maths?
Correlation is a statistical measure of the linear association between two variables. It is important to remember that correlation does not mean causation and also that the absence of correlation does not mean the two variables are unrelated.
