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AMS 310 Sample Midterm II Answer Key

# AMS 310 Sample Midterm II Answer Key - 5(a 1 5 2 6 5 w o x...

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AMS 310 Homework 5 (Due Monday 07/12/2010) Sample Midterm II Answer Key NAME _______________________ ID ________________________ Hw5 problems are selected from important examples of our lectures. The acctual exam will be just like this plus some short answer problems. These are only the answer keys. Please try to solve them by yourself. Please show all your work to get full credits for your hw5. 1. (a) .135 (b) .350 (c) 0 0 0 1 ) ( 2 x x e x F x 2. Expectation: .375, variance: .059 3. (a) .7995 (b) 464 4. (a) .8948 (b) .8821
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Unformatted text preview: 5. (a) . . 1 5 2 6 5 ) ( w o x x x f X , . . 1 5 3 6 5 ) ( 2 w o y y y f Y (b) .5 (c) .4625 6. .193 7. 15 ~ 8 . 4 . 12 / t X n s X T 8. .05 9. Expectation: -4, variance: 3.69 10. .0639 11. (a) .01 (b) .7486 (c) .3300 12. 40 13. (a) (224.15, 229.85) (b) (224.78, 229.22) 14. 132 . 2 04 . 1 4 , 05 . t T , accept Ho. 15. (-3.6, 21.4) 16. 365 . 3 70 . 3 5 , 01 . t T , reject Ho....
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