a To calculate the probability of randomly picking a horse, a unicorn and a zebra, we have to divide the number of these animals on the carousel with the total number of animals on the carousel. We will assume that all seats are available for little Eric to choose from.
giraffeslionselephantshorsesmonkeyunicornsostricheszebrasgazellesdinosaur44218163361
By adding these numbers, we get the total amount of animals (or seats) on the carousel.
4+4+2+18+1+6+3+3+6+1=48
Now we can calculate the probability that we pick one of the desired animals. To express it as a percentage, we calculate the fraction and then multiply the quotient by
100.
P(horse)P(unicorns)P(zebra)=4818=0.33333…≈33%=486=0.125=12.5%=483=0.0625=6.25%