There are two formulae for standard deviation. \(s = \sqrt {\frac{{\sum {{{(X - \bar X)}^2}} }}{{n - 1}}}\) (where n is the sample size). The second formula is a re ...

The plural of formula is formulae. A formula is a mathematical rule or relationship that uses letters to represent amounts which can be changed – these are called variables. For example, the formula ...

Find quick revision notes of unit Vectors and 3D Geometry. This revision notes include important terms and formulae from these two chapters. At the time of examination this revision note will prove to ...

Does your kid find it hard to remember multiplication tables or recall stories for exams? Well, good news for you that their memory can be strengthened and trained. Memory is the invisible superpower ...

If many of its gripping race sequences follow a familiar pattern, the international angle of the Formula 1 circuit allows for a constant change of global scenery, location hopping from the U.K. to ...