Wednesday

July 30, 2014

July 30, 2014

Posted by **devon** on Friday, November 14, 2008 at 10:59pm.

what is

a) the arithmatic mean

b) the harmonic mean

c) geometric mean

- math -
**Reiny**, Saturday, November 15, 2008 at 8:34amfor the arithmetic mean on n numbers

... add up all the numbers, then divide by n

so arithmetic mean = (2+3+5+7+7+8+10)/7 =

the harmonic mean of n numbers is

n divided by the sum of the reciprocals of those numbers

so harmonic mean = 7/(1/2 + 1/3 + 1/5 + 1/7 + 1/7 + 1/8 + 1/10) =

the geometric mean of n numbers is

the nth root of the product of the numbers

so geometric mean = 7th root(2*3*5*7*7*8*10)

= 7th root(117600) = 5.3

**Related Questions**

math - pls. explain how to get this: A number x is the harmonic mean of two ...

Math - Find harmonic mean and geometric mean for numbers 120, 130,145

math - where the arithmatic mean and geometric mean used in real life?

geometric mean - The geometric mean of two postitive numbers a and b is sqrt(ab...

math - What is the difference between geometric mean and arithmetic mean? ...

statistics - basically i'm at the begining of the text book doing summer work it...

Geometry-8th gr - The geometric mean x of two numbers is the positive value of x...

Math - A set of data has a mean of 25 and an outlier of 5. You find the mean ...

geometric mean - Eighteen is the Geometric Mean of 12 and what number 18 = sqrt...

math - if the arithmetic mean of 2 positive numbers (a and b) is 16 and their ...