Squishward

'Erm, what the Sigma?': Squidward has been meme'd. Again

SpongeBob SquarePants: Patrick's Coupon/Out of the Picture

SOLVED: According to a survey by Nickelodeon TV, 88% of children under the age of 13 recognized a picture of the cartoon character SpongeBob SquarePants. Assume that among those who recognized SpongeBob, 729 also recognized SpongeBob's cranky neighbor Squidward Q. Tentacles. Also assume that among those who did not recognize SpongeBob, 10% recognized Squidward. What is the probability that a randomly chosen child recognized neither SpongeBob nor Squidward?