Yuri has $5$5 blue marbles in a bag, along with $3$3 marbles of other colours.
Yuri picks a marble from the bag without looking.
What is the probability that Yuri picks a blue marble?
A bag contains $21$21 red marbles and $26$26 blue marbles.
A spinner has $5$5 sectors with a , $2$2 sectors with , and $3$3 sectors with a . All the sectors are the same size.
A letter is chosen at random from the word COCOONS.