Answer 1a =23 , 1b =7, 1c = 18 Answer 2a = 24 , 2b = 54 , 2c = 9 Answer 3 = E(Mary) Answer 4a = -5, 4b = 4

Answer 1a :63 , 1b: 21, 1c: 42 Answer 2 :6 Answer3 : 11 Answer4: Bill should bet $42 on Sprinter E. This gives a Bill 96% chance of winning

Answer 1 D Answer 2 4 Answer 3a is 8, 3b is 11, 3c is 118, 3d is 1108 Answer 100m winner is Jeremy, 100m winning time is 12.20 Second, 50m winner is Jeremy, 50m winning time is 6.39 Second

Answer 1 D Answer 2 4 Answer 3a is 8, 3b is 11, 3c is 118, 3d is 1108 Answer 100m winner is Jeremy, 100m winning time is 12.20 Second, 50m winner is Jeremy, 50m winning time is 6.39 Second

Answer 1: A Answer 2: 19 Answer 3: a. 76 b. 94 c. 62 d. 107 Answer 4: 50m winner is Bob, 1.3 secs. 100m winner is Ben, 2.1secs

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