A diagram that uses lines to represent frequencies. The longer/taller the line the higher the frequency. Only used for discrete data, so equal gaps must be between the lines.

A diagram that uses bars to represent frequencies. The longer/taller the bar the higher the frequency. Only used for discrete data, so equal gaps must be between the bars.

A way of remembering which calculation must be done in which order. It stands for Brackets Indices Division Multiplication Addition Subtraction.

In BODMAS, Indices is swapped for Order.

Example: Calculate 7 + 3 x 4

🔑 Key BIDMAS Topics: Order of Operations, Substitution, Solving Equations, Changing the Subject