. Anya rolls an 8-sided die twice. Find the probability that: a exactly one 4 is rolled b at least one 4 is rolled. A box contains 7 red and 3 green balls. Two balls are drawn one after another from the box without 5. replacement. Determine the probability that: a both are red b the first is green and the second is red. 6. A lottery has 100 tickets which are placed in a barrel. Three tickets are drawn at random from the barrel, without replacement, to decide 3 prizes. If John has 3 tickets in the lottery, determine his probability of winning: a first prize b first and second prize call 3 prizes d none of the prizes