﻿ The tickets in a box are numbered from 1 to 20 inclusive. if a ticket is drawn at random and replaced, and then a second ticket is drawn
, 18.10.2019 09:00, ic838847

# The tickets in a box are numbered from 1 to 20 inclusive. if a ticket is drawn at random and replaced, and then a second ticket is drawn at random, what is the probability that the sum of their numbers is even?

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