Question

Determine the arithmetic mean of following estimates of a specific blood parameter in 10 patients in a district hospital?

Estimates: 25, 30, 21, 55, 47, 10, 15, 17, 45, 35

Answer 1

Solution

Given observations, x_i: 

                                        25, 30, 21, 55, 47, 10, 15, 17, 45, 35

Simple Arithmetic Mean: 

x̅=1/n∑x_i

Substitute values of individual observations, x_i in the equation and add:

x̅=1/n (25, 30, 21, 55, 47, 10, 15, 17, 45, 35)

Simplify by substituting n=10

x̅=1/10 (300)

x̅=30

So, arithmetic mean of the estimates of a specific blood parameter in 10 patients = 30

 

Arithmetic mean of the estimates of a specific blood parameter in 10 patients = 30