AverDist

AverDist - Averaging and Probability Distributions Example...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Averaging and Probability Distributions Example data set: x i __ 6 3 4 6 6 3 7 8 6_ 49 average = x = x i n = 49 9 = 5.44 Using a weighted average: weight each result by the number of occurrences, n i . n 6 x 6 ↓↓ average = x = n i x i n i = 2(3)+1(4)+0(5)+4(6)+1(7)+1(8) 2+1+0+4+1+1 = 49 9 with the sum over all possible values of x. Using a probability distribution P(x i ): Weight each result by the probability of its occurrence.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 02/22/2012.

Ask a homework question - tutors are online