In this post, we’ll look at the reactivity series of metals (tested in the O Level exam), and then have a look at some of…

In Chemistry, separation techniques are methods used to separate and purify components from a mixture. Some common separation techniques include: filtration, chromatography, distillation, crystallization,

In this post, we’ll look at correlation and linear regression as tested in H2 A Level Math section on statistics. Here, you’ll what is correlation, regression, product moment correlation coefficient (r), how to use the graphic calculator Ti84 to do a least square regression.

In this post, you’ll learn how to do a hypothesis testing for mean, using both the p-test method and the z-test (test statistics) method.

In this post, we’ll look at common concepts tested in sampling for H2 A Level Math, which include types of samples, central limit theorem, … …

In this post, we’ll look at common concepts tested in normal distribution for H2 A Level Math.

A binomial distribution is a probability distribution that describes the number of successes in a given number of independent trials. The conditions needed for a…

A discrete random variable is one that takes discrete value e.g. 1, 2.4, 3, etc. For example, if a discrete random variable, X, represents the number shown on a dice, then X can only take … ….

In this post, we look at probability concepts tested in the H2 A Level Exam.

In this post, we look at permutation and combination concepts tested in the H2 A Level Exam.