Revision sheet · Mathematics

Statistics

Mean of grouped data: $x ˉ = \frac{\sum f _{i} x _{i}}{\sum f _{i}}$
Median of grouped data: $M_{e} = l + \frac{\frac{n}{2} - c f}{f} \times h$
Mode of grouped data: $M_{o} = l + \frac{f _{1} - f _{0}}{2 f _{1} - f _{0} - f _{2}} \times h$