//caption:Find arithmetic mean
//Ex2.12
clc
clear
close
x1=25.65//first reading(in W)
x2=24.39//second reading(in W)
x3=23.75//third reading(in W)
x4=26.42//fourth reading(in W)
x5=24.92//fifth reading(in W)
X=(x1+x2+x3+x4+x5)/5
disp(X,'arithmetic mean(in W)=')