Equally likely outcomes

problem
Connect three

Age

11 to 16

Challenge level

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
problem
Boy or girl?

Age

14 to 16

Challenge level

Will the witch make a profit or loss?
problem
Which spinners?

Age

14 to 18

Challenge level

Can you work out which spinners were used to generate the frequency charts?
problem
Teams

Age

16 to 18

Challenge level

Two brothers belong to a club with 10 members. Four are selected for a match. Find the probability that both brothers are selected.
problem
How many balls?

Age

16 to 18

Challenge level

A bag contains red and blue balls. You are told the probabilities of drawing certain combinations of balls. Find how many red and how many blue balls there are in the bag.
problem
Dicey dice

Age

16 to 18

Challenge level

Invent a set of three dice where each one is better than one of the others?