Emilio José Chaves

4 Questions 102 Answers 0 Followers

Questions related from Emilio José Chaves

Can a bivariate random dataset be nonlinear and polysemic at the same time?

Variables are Q,Y and dataset N=11. As expected the graph Yvs.Q is non linear, but for the same Q it shows two different Y values. Dataset is down: I ask: 1) Are these cases frequent in natural...

29 August 2014 2,699 11 View

Can any mathematician explain why this equation tends to 1/e, e=the Neperian base 2,71828319 ?

Working Pareto's distribution in Excel, I use the function P=F ^ [1/(1-F) ] to estimate the fraction P that receives more than one media. When F value approaches 1 from below, it results that P...

24 April 2014 7,472 5 View

Is the main purpose of data analysis to develop a good model of CDF based on data or is it to postulate a general distribution model for any sample?

If I prefer a particular parametric model, that does not authorize me to recommend it as a basic referent to be applied or tested to all univariate samples. This may be the biggest practical...

04 January 2014 8,363 3 View

What is the mathematical sense of Probability Density Functions?

I understand that PDF is the derivative dXac/dK where Xac=cumulative population and K=variable value. So if we can express K as a continuous function of Xac, and we can estimate dK/dXac then PDF=...

20 December 2013 8,639 6 View