text stringlengths 0 6.73k |
|---|
10 55 ABABBAA, ABABABA, ABABAAB, ABAABBA, |
ABAABAB, ABAAABB, AABBBAA, AABBABA, |
AABBAAB, AABABBA, AABABAB, AABAABB, |
71. a. Mode = .93. It occurs four times in the data set. ‘AAABBBA. AAABBAB, AAABABB, AAAABBB) |
b. The Modal Category is the one in which the most b. (AAAABBB, AAABABB, AAABBAB, AABAABB, |
observations occur. AABABAB} |
73. The measures that are sensitive to outliers are the mean 13, a, 07 b..30. ¢..57 |
and the midrange. The mean is sensitive because all - |
values are used in computing it, The midrange is the 15. a. They are awarded at least one of the first two projects, |
most sensitive because it uses only the most extreme 36. |
values in its computation, b. They are awarded neither of the first two projects, .64. |
‘The median, the trimmed mean, and the midfourth are ¢. They are awarded at least one of the projects, .53. |
less sensitive to outliers. The median is the most resistant d. They are awarded none of the projects, .47. |
to outliers because it uses only the middle value (or e, They are awarded only the third project, .17. |
values) in its computation. The midfourth is also quite f, Either they fail to get the first two or they are awarded |
resistant because it uses the fourths. The resistance of the the third, .75. |
trimmed mean increases with the trimming percentage. 47 4 579, 879 |
Tet bl POS S8s bake aad 19. a. SAS and SPSS ate not the only packages. |
77. b. 552, .102 30 d.19 b.7 8 d.2 |
79. a. There may be a tendency to a repeating pattern. 21. a. 8841 b, .0435 |
b. The value .1 gives a much smoother series. , |
©. The smoothed value depends on all previous values of 2° % 10 b- 18,19 41 4.59 €.31 £69 |
the time series, but the coefficient decreases withk. 25, a, 1/15 b.6/15. @ 14/15. 8/15 |
d. As fgets large, the coefficient (1 — «)'"' decreases to |
zero, so there is decreasing sensitivity to the initial 27- a. 98 b..02 ¢..03. d..24 |
value; 29.2. 1/9 b.8/9 €.2/9 |
31. a. 20 b.60 © 10 |
Chapter 2 33. a. 243 b. 3645, 10 |
1. a, ANB! b. AUB ¢. (ANB') U (BNA') 35. .0679 |
3. a. S = (1324, 1342, 1423, 1432, 2314, 2341, 2413, 37, 2 |
2431, 3124, 3142, 4123, 4132, 3214, 3241, |
4213, 4231) 39. 0456 |
b. A = (1324, 1342, 1423, 1432} |
c. B= (2314, 2341, 2413, 2431, 3214, 3241, 4213, AA Ja O89 BuL2AOTS &.21998 |
4231} 43. a. 1/15 b.1B ©2238 |
d. AUB = (1324, 1342, 1423, 1432, 2314, 2341, 2413, |
2431, 3214, 3241, 4213, 4231) 45. a. 447, (5,2 |
ADB = @ b. P(AIC) = 4, the fraction of ethnic group C that has |
A’ = (2314, 2341, 2413, 2431, 3124, 3142, 4123, blood type A. |
4132, 3214, 3241, 4213, 4231} P(CIA) = .447, the fraction of those with blood group |
A that are of ethnic group C. |
5. a. A= [ SSF, SFS, FSS } e211 |
b. B = | SSS, SSF, SFS, FSS } |
¢. C = { SSS, SSF, SFS } 47. a. Of those with a Visa card, .5 is the proportion who also |
d. C’ =| SFF, FSS, FSF, FFS, FFF } have a Master Card. |
‘AUC = { SSS, SSF, SES, FSS } b. Of those with a Visa card, .5 is the proportion who do |
‘ANC = | SSE, SFS } not have a Master Card. |
BUC = { SSS, SSF, SFS, FSS } |
BNC = { SSS SSF, SFS } |
--- Trang 831 --- |
818 Chapter 3 |
¢. Of those with Master Card, .625 is the proportion |
who also have a Visa Card. Chapter 3 |
d. OF those with Master Card, .375 is the proportion |
who do not have a Visa Card. “Ss: FFF SFF FSF FFS FSS SFS SSF SSS |
e. Of those with at least one of the two cards, .769 is the x £ 4 i 2 2, 2: a |
proportion who have a Visa card. |
do BER AR 3. M = the absolute value of the difference between the |
alte outcomes, with possible values 0, 1, 2, 3, 4, 5 or 6; |
51. 436, 582 W = Lif the sum of the two resulting numbers is even |
and W = 0 otherwise, a Bemoulli random variable. |
53. .0833 |
5. No, X can be a Bemoulli random variable where a |
59. a, 067 b. 509 success is an outcome in B, with B a particular subset |
x, (287 of the sample space. |
7 7. a. Possible values are 0, 1,2, ..., 12; discrete |
SS BGS Bie2A5 b. With N = # on the list, values are 0, 1,2, ..., Ns |
65. 466, .288, .247 discrete |
¢. Possible values are 1, 2, 3,4, ... ; discrete |
67. a. Because of independence, the conditional probability d. (.x:0 <x < 00 } if we assume that a rattlesnake can |
is the same as the unconditional probability, .3. be arbitrarily short or long; not discrete |
b. 82 ¢. 146 e. With c = amount earned per book sold, possible |
. rm values are 0, ¢, 2c, 3c, ... , 10,000¢; discrete |
TAs 349,,651; 1 — py — py f. { y: 0 < y < 14} since 0 is the smallest possible pH |
73. 99999969, 226 and 14 is the largest possible pH; not discrete |
g. With m and M denoting the minimum and maximum |
75. .9981 possible tension, respectively, possible values are { |
a 8 x:m <x <M }; not discrete |
+ Sessny, h. Possible values are 3, 6, 9, 12, 15, ... —ie., 3(1), |
79. a. 2p—p? b1-(—p)" a(l—py 3(2), 3(3), 3(4), .. giving a first element, etc,; discrete |
3 |
dis Seas] <p) veni013e 9. a. X isa discrete random variable with possible values |
81. .8588, 9896 {2, 4, 6,8... |
b. X is a discrete random variable with possible values |
83. 2n(1 — 2) {2, 3,4, 5,...} |
85. a. 1/3,.444 b..1S e291 II. a. p(4) = 10. 45, .25 |
87. 45,32 13. a. 70 b.45 6.55 d71 e.65 £45 |
89. a. 1/120 b. 1/5 © 1/5 45. a. (1,2) (1,3) (1,4) (1,5) (2.3) (2,4) (2,5) (3,4) (3,5) (4,5) |
a BONE b. pO) = 3, pl) = 6, p2) = 1, p(x) = 0 otherwise |
- ¢. F(O) = .30, F(1) = .90, F(2) = 1. The c.d.f. is |
93. a. 904 b. .766 0 x<0 |
F(a) =) 30 OS x<1 |
95. .008 @)=4 90 1<x<2 |
97. .362, 348, .290 1 28x |
99. a. P(GIR, < Ry < Rs) = 2/3, so classify as granite if 17. a. 81 b. .162 |
Ry < Re < Re ¢, The fifth battery must be an A, and one of the first |
b. P(GIR, < Ry < Ry) = .294, so classify as basalt if four must also be an A, so |
Ri < Ry < Ry pS) = P(AUUUA or UAUUA or UUAUA or |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.