In this paper we present some simple computational programs for use in a course of Introduction to Probability. Evaluation of experiments efficiency with forage plants. A study about distribution of variation coefficient was carried out with forage plants considering various species and observed variables. The obtained data were stored in an Access data bank, analyzed through a SAS program and results showed great variation among species and among variables studied. This work shows loss function used to smooth position data of a running to obtain velocity and acceleration for the determination of the motor pattern of this movement.
Convolution is the basis of non parametric smoothing like loess.
The goodness of fit is guaranteed by residual analysis and derivatives curves without noise. Considering an independent Poisson sequence three methods of detection of changepoints are compared when there is a small or large change in the means and when the sample size is small or moderate. An alternative method using Schwarz' Criterion is proposed. Stability analysis of white clover cultivars. The simple linear, segmented and bi-segmented regression methods and the relationship between variation coefficients and mean were utilized in the stability analysis of white clover cultivars.