ABSTRACT
The symbol we use for the sample mean is x , and its definition in symbols is as follows:
_ Xx x = — (2.1)n
where Xx means the 'sum of the observed values of x ,’ and n is the 'number of observed values.’
The symbol we use for the sample mean is x , and its definition in symbols is as follows:
_ Xx x = — (2.1)n
where Xx means the 'sum of the observed values of x ,’ and n is the 'number of observed values.’