The probability of a New York teenager owning a skateboard is 0.37. The probability of owing a bicycle is 0.81 and of owning both is 0.36. If a random New York teenager is chosen at random, what is...

The probability of a New York teenager owning a skateboard is 0.37. The probability of owing a bicycle is 0.81 and of owning both is 0.36. If a random New York teenager is chosen at random, what is the probability that the teenager owns a skateboard or a bicycle?