https://www.examsolutions.net/gcse- maths/statistics/statistics-mean-median-and- quartiles/#quartiles1

Mean from a table

https://www.examsolutions.net/gcse- maths/statistics/statistics-mean-median-and- quartiles/#quartiles2

Cumulative Freq Curve

https://www.examsolutions.net/gcse- maths/statistics/statistics-mean-median-and- quartiles/#quartiles3

Box plots

https://www.examsolutions.net/gcse- maths/statistics/statistics-box-plots/#boxplots1

Probability video

https://www.mathsgenie.co.uk/probability.html