Answer to Question #102412 in Statistics and Probability for eyuel

Question

what is mean?

Answer 1

Mean is the average value of a set of two or more numbers in a data series. It is obtained by summing up the values of items in a dataset and dividing by the number of terms. It is a measure of central tendency denoted by x ̅ .

Assuming that there are n numbers, and x_i be all the x-values, mean is obtained as follows;

x ̅=(∑x_i )/n; where i=1,2,3,…,n

x ̅=(x₁+x₂+⋯+x_n)/n