Equally likely outcomes

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

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

Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?

Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?

Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?

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

Will the witch make a profit or loss?

You and I play a game involving successive throws of a fair coin. Suppose I pick HH and you pick TH. The coin is thrown repeatedly until we see either two heads in a row (I win) or a tail followed by a head (you win). What is the probability that you win?

Your partner chooses two beads and places them side by side behind a screen. What is the minimum number of guesses you would need to be sure of guessing the two beads and their positions?

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.