Bar Charts
Bar Chart:A bar chart or bar graph is a type of column chart where each data value is represented using rectangular bars with lengths proportional to the values that they represent. The bars in...
Category: Data
Fractions as Indices
You need to be able to recognise fractions in indices. This simple section explores fractions in the rules of indices. Below are the indices rules where you will encounter the use of fractions. The...
Mode of a continuous random variable
This article is a continuation from the previous article. It may be a good to read through it before attempting this article. This article explores the mode of a continuous random variable. The mode...
Cumulative binomial distribution tables
This section is a continuation from the previous binomial distribution article. It may be a good idea to go through it before attempting this article. This article explores using tables of the cumulative distribution...
When is to use binomial distribution
This article is a continuation from the previous Binomial distribution article. It may be a good idea to go through that article before attempting this article. This article explores the conditions when a binomial...
Finding probabilities using binomial theorem
This article is a continuation from the previous binomial distribution article. It may be a good idea to go through it before attempting this section. This section explores how to use binomial theorem to...
When to use Poisson distribution
This article is a continuation from the previous Poisson distribution article It may be a good idea to go through it before continuing with this article. This article covers how to decide whether or...
Using tables of the Poisson cumulative distribution function
This article is a continuation from the previous poisson cumulative article, so it may be a good idea to read through it before continuing. For this article you’ll need a copy of the Poisson...
Quantitative and Qualitative variables
This section explores classification of variables or data. In statistics data is a collection of observations or measurements of variable. The classification of variables depends on whether their observations can be written down as...
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...