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| r pruim | 0185 | bulleted list | other | "solid blue", "dashed green", "dotted green", "red" -- colors don't show | original is in color, but copies are not. I'll hand out colored pages when color is necessary to interpret. In this case, the different line types suffice. But let me know when you detect things like this, since I would like the text to read correctly even when printed in black and white. |
| r pruim | 0015 | line 3 | reference error | figure B4 -> Figure 1.3 | Note: these figures are identical, but the reference should be changed. |
| L Kavlie | 1010 | Lemma A.3.1 | math | r cannot be 1 in the first part | that's right. It should say for any a and any r NOT EQUAL TO ONE. |
| r pruim | 1010 | Lemma A.3.1 | math | First part also doesn't make sense when r=0 since 0^0 is undefined. | r cannot be ZERO or ONE. |
| J Boldt | 0034 | Problem 1.9 | unclear | What are the units on the list of award amounts? (Dollars? Millions of dollars?) | $1000. Good catch. |
| J Boldt | 0066 | First answer to the question in Ex 2.2.21 | typo | The answer should be P(D | Aa) = 0.05 (not 0.01) | yep. |
| A Boorsma | 1008 | Second Line | typo | "an" is typed twice before "Indicator Function" | yep |
| C Swenson | 0128 | Exercise 2.23 | reference error | Problem 2.23 references Example 2.2.7 for a disease, but Example 2.2.7 is about poker hands | Should be Example 2.2.20 |
| Andrew Warren | 0132 | Problem 2.38 | unclear | ambiguous whether the first 10 are made or any 10 in a row | should be: What is the probability that Freddie makes his first 10 shots? |
| R Pruim | 0133 | Prob 2.39d | typo | Frank should be Freddie | yep. |
| Ashley Luse | 0062 | Example 2.2.16 | typo | denominators in last displayed formula should be 51, 50, 49, 48 | yep. |
| Ashley Luse | 0062 | Example 2.2.17 | typo | Yachtzee should be Yahtzee | yep |
| Ashley Luse | 0071 and 0073 | middle | typo | there is no argument 'n' for the negative binomial disribution; 'x' should be 'q' for pbinom() and pnbinom() | yep. Note that the x vs q hardly matters since we never use this argument's name. |
| R Pruim | 0119 | item 3 | unclear | This sentence shoul have an important additional phrase at the end "assuming that the null hypothesis is true". This is implicit in the wording of item 4, but should be make explicit already here. | yep. |
| R Pruim | 0118 | first sentence | typo | 'the set of outcomes' -> 'a set of outcomes' | yep |
| R Pruim | 0120 | bottom of page | suggestion | I should have included reference to the important rules for E(X+Y) and Var(X+Y) and a bit about joint distributions | I'll put that in the next version. |
| R Pruim | 0160 | Lemma 3.2.2 | typo | missing negative sign on lower limit of integration | yep. should be minus infinity to infinity. |
| R Pruim | 0079 | middle of page | typo | <= and >= should be < and > in the alternative hypotheses. | yep. |
| A Boorsma | 0124 | Exercise 2.3 | reference error | It references "Example ??". It should reference Example 2.2.5 on page 48. | yep |
| C Swenson | 0058 | Example 2.2.13 | typo | ...assumption that boys are girls are equally likely... | ...assumption that boys and girls are equally likely... |
| R Pruim | 0165 | item #3 | reference error | reference should be to section 3.4 | yep |
| R Pruim | 0167 | middle of page | typo | "or not" appears in middle and at end of sentence. once suffices. | yep. |
| A Boorsma | 0122 | Important Discrete Distributions Table | typo | hypergeom. pmf formula should have n C (k-x) in the numerator rather than n C (n-x) | yep. |
| B Sheler | 0122 | 2.8.3 Important Discrete Distributions (table) | typo | The binomial pmf formula should read (n choose x) not (x choose n) | yep. |
| A Boorsma | 0029 | First Sentence after R commands | typo | It says "... that the it is...". It should say "..that it is..." | yep |
| A Boorsma | 0073-74 | Example 2.3.3 | unclear | Asks for P("it will take you more than 20 rolls"), yet it calculates P(Y >= 20) which is not the same because it includes 20 rolls. It should calculate P(Y >=21) or P(X >= 20). | Should make it read "20 or more rolls" or "at least 20 rolls". |
| J Boldt | 0146 | 1st sentence | typo | It says "...should remind you Riemann sums...". It should say "...should remind you of Riemann sums..." | yep |
| J Boldt | 0147 | 1st integral, middle of page | typo | Bottom limit should be negative infinity. | yep |
| R Pruim | 0164 | Definition 3.3.3 | unclear | should say "random variable with mean mu and standard deviation sigma" just to make it explicit what mu and sigma are. | yep |
| N Campos | 0077 | 1-pbinom(49,100,.5) | typo | should be 1-pbinom(59,100,.5) ; 59 heads | yep |
| A Boorsma | 0135 | Problem 2.47 | typo | It says "...to test a coin too see..." It should say ".. a coin to see..." | yeep |
| J Boldt | 1096 | 3rd line of part (a) | typo | "apprpriate" should be "appropriate" | yep |
| J Boldt | 1095 | Last sentence in question D.2 | typo | "gooal" should be "goal" | yep |
| J Boldt | 1094 | 4th line of answer | typo | "prodcues" should be "produces" | yep |
| J Boldt | 1094 | 3rd line of answer | typo | "paramters" should be "parameters" | yep |
| J Boldt | 0180 | Last paragraph, first sentence | typo | "gamm" should be "gamma" | yep |
| N Campos | 0163 | proof | typo | integral should be from negative infinity to infinity | yep |
| N Campos | 0148 | Definition 3.1.3 | typo | the integral should be from negative infinity to x | yep |
| A Boorsma | 0216 | Problem 3.5 Part C | typo | It should say either "This random variable is..." or "These random variables are" | yep |
| R Pruim | 0188 | line 4 | math | says: 'a is the scaling constant'; should say '1/a is the scaling constant' | yep |
| A Boorsma | 1096 | D.4 a) and c) | typo | for a) "subsitutions" should be "substitutions" and c) "report report" should just be "report" | yep |
| J Boldt | 1092 | 1st equation at top of page | typo | The alpha should have a hat on it. | yep |
| J Boldt | 0159 | Ex 3.1.10, 4th line | typo | "that the no customers" should be "that no customers" | yep |
| J Boldt | 0162 | Lemma 3.2.6 | typo | Var(aX+b) = a^2*Var(X) | ack! not sure how that one snuck through |
| J Boldt | 0173 | Proof of Theorem 3.3.6, #2 | typo | The "a" variable should not be in the exponent. | yep |
| R Pruim | 0184 | Lemma 3.4.12 | math | This lemma is messed up. See Problem 3.25 | You should have a replacement for this page that fixes the problem. |
| A Boorsma | 0216 | 3.8 part e | typo | "and it does that" would be clearer with "and what does it" instead. | meant was "and what does it tell you" |
| A Boorsma | 0204 | Definition 3.7.5 | typo | The marginal pdf in the denominator should be Y's marginal, not X's marginal. | page has been reprinted |
| A Boorsma | 0205 | Example 3.7.4 | unclear | Method for calculating the Marginals does not follow Def. 3.7.4. | page has been reprinted |
| A Boorsma | 0224 | Problem 3.37 Part B | math | | X^2 + Y^2 | <= R/2 should be sqrt( | X^2 + Y^2 | ) <= R/2 | also, no need for absolute value since sum of squares is >=0. (Basically this should have been sqrt rather than abs val.) |
| B Sheler | 0294 | Problem 4.1 | typo | "and" should be "an" in the last sentence | yep |
| A Boorsma | 0224 | Problem 3.37 | suggestion | In the second sentence a comma should be added after the word "origin" | yep. Or perhaps even use parens rather than commas. |
| B Sheler | 0224 | Problem 3.35 | typo | change "in" to "an" where it reads "on in interval [5,6]" | yep |
| J Boldt | 0234 | First sentence of section 4.2.1 | typo | There is a double "the". | yep |
| J Boldt | 0223 | Problem 3.34 | typo | Should it be [0,1]^2 ? | yes it should. |
| J Boldt | 0207 | 2nd line of equations | typo | Should be xy + (y^2) / 2 | yes. Futher confusing things, 1^2 = 1 and 0^2 = 0, so the missing exponent doesn't make the subsequent arithmetic wrong. |
| J Boldt | 0152 | Middle paragraph | typo | "First not that..." should be "First note that..." | yep. |
| B Sheler | 0175 | proof | typo | Insert "we" into: It is important to observe that although WE have... | yep. |
| R Pruim | 0298 | 4.17c | typo | missing period | yep |
| R Pruim | 0298 | 4.18 | typo | 'on certain diet' should be 'on a certain diet' | yep |
| R Pruim | 0249-0250 | second line of proof, second line from bottom of page, first line of page 250 | suggestion | subscripts could be i in def of Z (should stay n is def of W). It is correct as is, but might be clearer to use i for the index. | have to think this one over |
| R Pruim | 0267 | middle of page | typo | missing exponent (2) in E(X.bar^2) = mu^2 + sigma^2/n | yep. |
| A Boorsma | 0299 | Prob 4.21 | typo | "not and unbiased" should be "not an unbiased" | yep |
| J Boldt | 1078 | Figure C.2 | typo | v should be x | yep |
| A Boorsma | 0152 | Last Paragraph | typo | "Example 3.1.1 should be Example 3.1.6" | yep |
| A Boorsma | 0182 | Def. 3.4.10 | typo | The Scale and Shape parameters are switched. Scale should = Beta, Shape should = Alpha | yep. ack. |
| J Boldt | 0261 | results line of sample size = 20 | typo | x = 20 (not 5), so the code should be ...rnorn(20,500,100)... | good catch. |
| J Boldt | 0264 | 1st paragraph | typo | "...95% is quite..." should be "...95% for..." | yep |
| A Boorsma | 0103 | Below Lemma 2.6.11 | reference error | It says "Exercise ??" I think it should say "Exercise 2.66". | yep |
| A Boorsma | 0102 | Above Theorem 2.6.9 | reference error | It says "In Section ??," and I'm not sure which section it should be. | looks like I need to add that example in section 3.7 |
| R Pruim | 0304 | 4.35a | typo | Use paired -> Use a paired | yep |
| C Swenson | 0288 | eq 4.7 | unclear | q hat hasn't been defined | replace q hat with (1 - pi hat) |
| R Pruim | 0288 | Eq 4.7 | typo | first z-star should be squared like the rest of them | yep |
| J Boldt | 0294-0306 | Header | typo | The header should say "4.10 Exercises" on each page. | forgot to make "exercises" a numbered section. I'll fix that next time around. |
| J Boldt | 0306 | The data set used in Problem 4.39 | unclear | The l looks like a 1 | yes, perhaps a better name is in order |
| B Sheler | 0251 | 4th paragraph, 2nd sentence. | typo | add "as" to make the sentence read "becomes as accurate as we like." | yep |
| A Boorsma | 0288 | Last line of 2nd Paragraph | reference error | The "Exercise ??" needs referencing, not sure which one it should be. | there is a good reason you are not sure -- that exercise is missing |