Types of mean

Types of Mean Basic understanding about the various types of Mean

Types of Mean 1.Arithmetic mean (AM) : It is the sum of the sampled values divided by the number of items in the sample.

2.Geometric mean (GM) : It is an average that is useful for sets of positive numbers that are interpreted according to their product 3.Harmonic mean (HM) The relation between AM,GM and ≼ HMHM AM ≼ GM

Mean Calculation Suppose x1,x2,x3…xn is a sample then Arithmetic mean (AM) −

x=

Geometric mean (GM)

x1 + x2 + x3 + x4 ... + xn n

_

n

x =(∏ xi )

1 n

i= 1

n

1 1 Harmonic mean (HM) x = n.( ∑ )− _

i= 1

xi

Mean of a function To calculate a mean of a infinite set of values like a function f(x),the formula is as follows b

âˆŤf

y avg =a

( x ) dx

b− a

Basic and interesting formulas, which are very helpful to solve algebra homework problems.