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Probability
and Statistics
In this section we present some examples to
solve typical ' probability
and statistics ' problems. We present the Matlab code without using any special toolbox
or instruction. Everything is plain and simple... You could even code
the same algorithms in other programming languages without any problem!
Permutations
and Combinations
This algorithm (code in Matlab) calculates the number of permutations and combinations
of N
objects taken D
at a time. The full Matlab code is...
Normal
Distribution
This algorithm (program in Matlab) calculates the probability and
frequency of given values on a standard normal distribution curve
(Gauss’ bell). You have to enter the mean, the standard deviation and
the value of interest...

Binomial
Distribution
When a binomial
distribution is being considered, we use
this algorithm to calculate the probability
of a number
of successes in a given number of Bernoulli
trials. It's necessary to provide the probability of
succes on a single trial...
Poisson Distribution
Using the Poisson
distribution, this program calculates the probability
of

an event occurring a given number of times.
You must know
the
expected frequency of the event...
Fdistribution
This algorithm calculates percentile
values for
given values on an Fdistribution curve.
You must provide the value
of F,
the degrees of freedom
in the numerator and the degrees of freedom in the
denominator...
Student's
tdistribution
This algorithm (Matlab program) calculates righttail values for points
on a tdistribution
curve. You must provide the value
of t
and the degrees of
freedom...
Tstatistic
 Student’s tTest
This program performs the tstatistic
and degrees of freedom for Student’s distribution. The calculations can
be based on any one of these three
hypotheses...
Chisquare
distribution
This program calculates
the tailend and percentile values
for points on a Chisquare
(X^{2})
distribution
curve. You must provide the value of X^{2}
and the degrees of freedom. No special instruction or
Matlab toolbox is used.
Random
Numbers and Simulations
We’ll use Matlab to generate random numbers so
that we can discuss its statistical
capabilities and explore some simulations...
Random
Number Tables
A
random number table is a listing of random numbers where we can choose
the quantity
of random numbers desired, the maximum and minimum values of numbers in
the
table, and whether or not duplicate numbers are allowed...
From
'Probability and
Statistics' to home


