List

Random Variables - Discrete

Data matching
problem

Data matching

Age
14 to 18
Challenge level
filled star empty star empty star
Use your skill and judgement to match the sets of random data.
Spread
problem

Spread

Age
16 to 18
Challenge level
filled star filled star filled star
Given the mean and standard deviation of a set of marks, what is the greatest number of candidates who could have scored 100%?
Maximum Scattering
problem

Maximum scattering

Age
16 to 18
Challenge level
filled star filled star empty star
Your data is a set of positive numbers. What is the maximum value that the standard deviation can take?
Distribution Differences
problem

Distribution differences

Age
14 to 16
Challenge level
filled star filled star empty star
How could you compare different situation where something random happens ? What sort of things might be the same ? What might be different ?