Trigonometry; Graphs of sec θ, cosec θ, and cot θ
This section explores graphs of secant θ, cosecant θ, and contagent θ. This is a continuation of trigonometry previous article. Sec θ Graph First let us look at the graph of the y =...
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Trigonometric: secant θ, cosecant θ, and cotangent θ
In this section we’re going to be looking at the functions secant θ, cosecant θ, cosecant θ. These functions are commonly written as; sec θ, cosec θ or cot θ respectively. Below are the...
Continuous random variables
This section explores random variables. By the end of this entry you should be able to decide whether something can be a probability density function, find the cumulative distribution function given the probability density...
Binomial Distribution
This entry explores binomial distribution. We shall explore the binomial distribution, conditions for a binomial distribution, binomial cumulative distribution function, mean and variance of a binomial distribution. Before attempting this section you must have...
Poisson distribution
This entry explores Poisson distribution. By the end of this entry you’ll be able to know when a Poisson distribution is a suitable model to use, understand how to use probabilities using a Poisson...
Factorials
This section explores factorial notation. Factorials are very popular in many areas of mathematics especially in combinations and permutations. This entry will be useful in the binomial distribution article so adding it first was...
Semicircle
In geometry a semicircle is simply half a circle or a closed shape consisting of half a circle. It is a one-dimensional locus of points that forms half of a circle. The arc that...
Diameter (of a circle)
This entry briefly looks at the diameter of a circle. The word “diameter” comes from Greek διάμετρος (diametros), “diameter of a circle”, from δια- (dia-), “across, through” + μέτρον (metron), “measure”. The diameter of...
What is a circle
Wiki: A circle is a closed curve where every point on the curve is a fixed distance from a point known as the centre. The distance between any of the points and the centre...