odd number solution

odd number solution - APPENDIX D ANSWERS T O ODD-NUMBERED...

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APPENDIX D ANSWERS TO ODD-NUMBERED EXERCISES CHAPTER I I.J Statistical pO/iulation could be air quality values for all C.s.·based flights during period of study. The sample is the mea· \Urements from the L5K flights. 13 (a) Laptop; (c) Collection of all laptop weights. 1.5 unit: hard drive, variable: distance, population: distances for drives made in hour. sample; distances for the 40 drives. 1.7 (a) x == 214.67: (0) Below LCL. 17 (a) 150.0 170.0, 190.0, 210.0, 230.0, 250.0; (b) 20. 19 (a) 11.5,20.5, 29.5, 38.5.47.5, 56.5.65.5; (b) 9. 111 The cumulative "less than or equal to" frequencies are O. 5, 16.25.43, 49. 50. 1.13 The cumulative "less than" frequencies are 0, 10. 20. 29, 40, ~ 2, 62.68.72. 76, 77, 79, 80. 2.15 The cumulative "less than" frequencies are 0, 4, 17.35,60, 11.94, and 100. 117 The cumulative "or more" frequencies are 60, 45, 33, 22, 15, .2. and O. 119 No, because we tend to compare areas: the large sack should modified so that its area is about double that of the small sack. 4 5 6 4 4 6 6 7 7 g 67 88 95 17 55 70 83 91 05 193462 0840 12 12 6 R 2344 555566789 00112334 5555677889 0001 I 122233344 55566677899 0001 1122234 55577K8K9 00233444 566 7 89 0224 58 2.29 (b) Mean. (a) x == - 3: (b) s == 2.94; (e) hole too small on average. (alX == 30.14: (b) No, trend exists. No, the total earning, are only $525,000. (a)x==0.3990:(0)s =0.1817. 2.41 x = 30.91 , 01 = 3004 , Q2 = 30.85. OJ = 31.2. 2.45 (a) x = 0.1673 ; (0) s = 0.0832; (c) No major difference. 2.47 x = 87040. s = 161.47. 2.49 v = 27.76%. 2.53 (a) 90; (b) 5.00. 2.55 (a) QI == 279.55, Q ~ = 327.22, and the interquflI1ile range is 47.67; (b) QI = 3.00. QJ = 6.80. 2.57 (a) 73.0; (b) 42.08%. 2.59 (a) QI = 1712, Q2 = 1863, Q3 =2061; (c) QI =69.5, Q2 = 70.55, Q3 == 71 .80. 2.6] (a) The class frequencies are 1, 8, 19, 17,9,3, and I. 2.63 (a) x = 504835 and s = 0.1904; (b) median is 5046 , QI == 5.34 and Q) = 5.63; (c) there is no apparent trend. 2.65 (a) median == 0040, maximum == 0.57 , minimum == 0.32 and the range == 0.25; (b) median = 0.51, maximum == 0.63, minimum == 0.47 and the range = 0.16. 2.67 (a) QI = 18.0. {h == 27.0, Q3 = 30.0; (b) minimum = 12, maximum == 48, range == 36, and the interquartile range == 12.0. 2.69 (a) QI = 19. Ql == 28. QJ = 55; (b) minimum == 12, maxi· mum == 63, range == 51. and the interquartile range == 36 . 2.73 (a) x = 0.2441 (b) s = 0.0036; (c) l' == 1.5%: (d) the larger drive has v = 17.9% so is relatively more variable. 2.75 (a) QI = 497.2, Q2 == 602.0, QJ == 743 .3; (b) 895.8. 2.77 No. 2.79 (b) Median == I greater than x == 10/ II. CHAPTERl 3.1 (b)R = {(O.O).(I, 1) , (2,2)). T = {(0.0).(I.O), (2.0),(3 ,0)}.U == {CO.I),(0,2) . (1.2)} . 3.3 (a) R U U = 1(0, 0). (I , I). (2 , 2). (0. I), (0. 2). (I . 2)} is the event that at least as many streams are contaminated as lakes. (b)
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odd number solution - APPENDIX D ANSWERS T O ODD-NUMBERED...

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