The following corrections refer to the 3rd printing. Other errors from the 1st and 2nd printings
have been corrected in the 3rd printing.

Chapter 1

page 67, Problem 13(b). In the answer, "gcd" should be replaced by "lcm" (least common multiple)

page 67, Problem 16: replace "any order" by "that order"

page 68, Problem 27(h): replace each "3 choose 2" by "4 choose 2" (final answer is correct)

page 68, Problem 28(c): replace k-j+1 by k-j-1 in the answer

page 70, Problem 44(d): The answer should be 0.9625

page 73, Problem 80: The answer should be 376/459 &asymp 0.82

page 75, Problem 94: The answers should be (a) p2/(1-p(1-p)), (b) (1-pB)pA/(1-(1-pB)(1-pA))

page 75, Problem 98(a). The answer should be 3/4

Chapter 2

page 152, Problem 45(b): The answer should be P(X>E[X]) = 0.2632 and P(Y>E[Y]) = 0.3226.

page 152, Problem 46. The answer is in terms of a general success probability p. In this particular case, p=1/2.

page 154, Problem 66: Replace exp(-lambda) by 1-exp(-lambda) twice

page 154, Problem 68: the correct answer is 1/4

page 156, Problem 93(b): the correct answer is r(k)=1/(7-k), k=1,..,6.

Chapter 3

page 207, line 7: The sigmas should be squared

page 256, Problem 39: The answer is valid for n&ge 4

page 257, Problem 47: The answer should be 4/9

page 259, Problem 70(b): The numbers in the answer are listed in reversed order

page 262, Problem 107: Replace &rho2 by &rho (twice)

page 262, Problem 108(c): Var[W] should be 10090.5

page 262, Problem 111: The answer should be 32.5 minutes

page 263, Problem 114(b): Replace &Phi(2) by &Phi(-1) in the answer

page 266, Problem 149(b): The correct answer is Gst-Gs(1,1)Gt(1,1)

page 266, Problem 150(d): Replace 5 by 3 in the exponent in the answer

page 282, last formula: k should be n in the denominator

Chapter 4

page 285, Problem 16(c): The answer should be (1/2)k, (1/2)k(1+k(k-1)/6), 1/(k+1)

page 292, lines 6 and 8: add minus sign to log

Chapter 5

page 291, line 10: Replace U by X

Chapter 6

page 364, line -7: The sum should be a product.

Chapter 7

page 408, Definition 7.2.1: Before X1=i1, insert X0=i0

page 437, line 6: Replace Equation (7.3.3) by Equation (7.3.2)

page 441, line 8: t-s should be s+t-s=t

page 442, line -2: the minus signs in G should be on the other diagonal.

page 445, line 20: add =0 to the equation

page 446, line 6: the minus signs in G should be on the other diagonal.

Table A.1

The entry for x=1.28 should be 0.900.