Statistics Homework Solutions 16

Statistics Homework Solutions 16 - 16 CHAPTER 2 ¡ ¡ 368...

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Unformatted text preview: 16 CHAPTER 2 ¡ ¡ 368 268 368 2 6123 ¨ ¡ 268 1012 2 8211 ¨ (b) 368 1012 9. (a) 368 ¡ P BB P WW 8 14 4 6 6 14 2 6 ¥ £ ¦¥ ¤ £¤ ¤ ¢¥ ¢¥ ¤ £¤ £ ¦¥ ¤ 0 5238 ¨ ¡ ¡ ¥ ¤ ¡ 44 84 ¥ P match ¡ £ ¡ Section 2.3 1. (a) 2 10 £ (b) Given that the first fuse is 10 amps, there are 9 fuses remaining of which 2 are 15 amps. Therefore P 2nd is 15 amps 1st is 10 amps 2 9. £ ¡¥ ¤ (c) Given that the first fuse is 15 amps, there are 9 fuses remaining of which 1 is 15 amps. P 2nd is 15 amps 1st is 15 amps 1 9. ¡¥ ¤ Given that a student is an engineering major, it is almost certain that the student took a calculus course. Therefore P B A is close to 1. Given that a student took a calculus course, it is much less certain that the student is an engineering major, since many non-engineering majors take calculus. Therefore P A B is much less than 1, so P B A P AB . ¥ ¤ ¥ ¡¥ 0 2 0 09 0 018 ¨ ¨ ¤ ¦¥ ¨ ¤ ¡¥ ¤ ¡ ¢¥ ¤ PAPB ¥ ¤ ¤ ¤ ¡¥ 5. (a) P A B ¥ 3. Therefore £ ¡ ¤ 11. 0 9260 ¨ (c) ...
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This note was uploaded on 12/20/2011 for the course STA 3163 taught by Professor Mattgilg during the Fall '11 term at UNF.

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