In this article,we attempt to approximate the chi-squared-type mixtures by a random variable with the distribution of form b1x2m1+b2x2m2+c;,where the parameters are determined by the first five cumula
The condition number of a linear function of the indefinite least squares solution is called the partial condition number for the indefinite least squares problem.
In-play betting on football gambling has received increasing attention in professional bettors,and a birth process model based on Poisson process is developed to forecast the probabilities of the vari