[Page 786 ( continued )] 11. 27. 29. 31. 33. 35. 37. 39. 41. 1. | (a) subjective, (b) subjective, (c) both, (d) subjective, (e) objective, (f) subjective , (g) objective (h) objective | 3. | (a) 019, .066; 2029, .233; 3039, .266; 4049, .266; 50 +, .166; (b) yes, only one of the events can take place each winter | 5. | P ( r 5) = .0433 rejected, P ( r < 5) = .9567 accepted | 7. | P ( r = 4) = .0367 | 9. | P ( r 4) = .0024 | (a and b) P (WA) = .28, P (LA) = .12, P (WO) = .36, P (LO) = .24; (c) P (OW) = .563 | 13. | (a and b) P (GA) = .198, P (DA) = .002, P (GB) = .392, P (DB) = .008, P (GC) = .368, P (DC) = .032; (c) P (BD) = .19 | 15. | P (AD) = .667 | 17. | E (bbl.) = 7.95 | 19. | E (lead time) = 2.2 days, s = 0.87 | 21. | E (building) = $38,000, s = 26,381, E (bonds) = 34,000, s = 4,899; probably bonds , less variation | 23. | E (time between breakdowns) = 2.75 hr. | 25. | P ( x 3.5) = .0668 | P ( x 900) = .1587 | P ( x 6,000) = .0475 | P ( x 670) = .7422 | P ( x 1,200) = .1056, 65.5 | P ( x 200,000) = .9699 | P ( x 27,000) = .1894 | P ( x 75) = .4364 | not normal | |