Philip M Nyenje

3 Questions 11 Answers 0 Followers

Questions related from Philip M Nyenje

From probability theory, sum of f(x) = 1. Hence P(x>X) = 1 - P(x<X). However, a simple check using randomly selected values shows otherwise. Why?

Given a set of values of a variable x= 40, 25, 20, 15, 12, and 5: The probability of exceedance of a value x=20 written as P (x>=20) can be got by arranging data is descending order thus...

08 August 2016 9,533 8 View

How do we ensure data is normally distributed before performing PCA and HCA using SPSS or R?

I want to perform principal components analysis (PCA) and cluster analysis (HCA) on a hydrochemical dataset using SPSS or R. But it is a requirement that data has to be normally distributed before...

08 August 2013 7,247 11 View

How can I use SPSS to determine if concentrations upstream of a river are significantly different from concentrations downstream of a river?

09 September 2012 427 21 View