Fran the Fearless has a well-known act at a local zoo. As part of the act, Fran handles a scary animal that she picks at random out of the Box of Terror. The following animals are in the box:

10

poisonous snakes,9

nonpoisonous snakes,11

poisonous spiders, and7

nonpoisonous spiders. What is theprobabilitythat the animal Fran picks is poisonous or is a snake?Do not round intermediate computations, and round your answer to the nearest hundredth.