Calculate the Harmonic Mean for the following data,?

Question

x 1 2 3 4
f 2 3 4 1

Answer 1

In mathematics, the harmonic mean (formerly sometimes called the subcontrary mean) is one of several kinds of average. Typically, it is appropriate for situations when the average of rates is desired. The harmonic mean is the number of variables divided by the sum of the reciprocals of the variables.

For data set a1, a2, a3, a4, the harmonic mean is:

H = 4/(1/a1 + 1/a2 + 1/a3 + 1/a4)
plug-n'-chug

Answer 2

3,2,6,4