# MatheAss 9.0 − Stochastics

Statistics
Mean, median, standard deviation and variance of a sample and the corresponding histogram are calculated.
Regression
The regression curve to fit a sample of points is calculated. Supported are proportional regression, linear regression, geometrical regression, exponential regression, logarithmic regression and polynom regression
Logistische Regression   (Neu in Version 9.0)
The program determines for a series of measurements a curve fit to the logistic function with the parameters    a1 = ƒ(0)·S ,  a2 = ƒ(0) ,  a3 = S - ƒ(0) ,  a4 = -k·S  and the saturation limit S .
Combinatorial Analysis
The number of arrangements and combinations of k out of n elements, with or without repetitions are calculated.
Binomial Distribution
For a b(k;n;p) distributed random variable X with fixed n and p you receive a histogram of the probabilities P( X = k ), a table of their values from kmin to kmax and the probability P(kmin≤X≤kmax).
Hyper Geometric Distribution
For a h(k,n,m,r) distributed random variable X with fixed n, m and r you receive a histogram of the probabilities P( X = k ), a table of their values from kmin to kmax and the probability P(kmin≤X≤kmax).
Normal Distribution
For a normal distributed random variable X with given mean μ and variance σ you receive the density function and the distribution function.