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Wk8-Test_Template

# Wk8-Test_Template - 543 432 321 7/84 = 1/12 16 D 17 1...

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MAT 205 Cumulative Test Wk8 Student Name: Lyndsey McClain Week #: 8 Questions 1 – 25 are worth  3 pts each  for a complete solution. (TOTAL 75 pts) ( Formulas, work, or  detailed explanation required.)   Question 25 – 30, worth  5 pts each  for a complete solution, (TOTAL 25 pts) (Formulas, work required.) Prob. # Credit Choice Complete Solution 1 1 C 5 g 4 g 3 g 2 g 1 = 120 2 1 A 5! (14 3)! - = 2184 3 1 A 9! (9 7)! - = 18,1440 4 1 D 8! (2! 2! 2!) g g = 5040 5 1 B AB, AD, CB, CD, EB, ED, BA, DA, BC, DC, BE, DE; 12 6 1 C 7! 4! 3! = 35 7 1 C 26 nCr 5 = 65,780 8 0 B 2 nPr 10 = 0 9 0 C 10 1 D 4 4 13 12 3 2 52 5 g g = 3744 2598960 = 1.44 x 10-3 11 0 B 12 1 C 0.3348979767 + 0.401877572 + 0.200938786 + 0.05358367627 = .9913 13 1 C 2 1 2 1 1 2 2 2        = 32.49% 14 0 C 15 1 B 9*8*7/ 6 possible combinations for card, because it doesn't matter what order they are drawn, you place them in the same sequence. So there are 84 possibilities. Of the possibilities, there are 7 in consecutive order (987, 876, 765, 654,
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Unformatted text preview: 543, 432, 321) 7/84 = 1/12 16 D 17 1 B .6 .4 .9 1.2 .3 4.1 2.2 .4 .7 .1 10 + + + + + + + + + = 1.09 18 1 C 156 3 202 7 225 7 313 5 322 2 396 3 27 + + + + + g g g g g g = 253.9 19 3 B No work required 20 1 A 21 D 22 1 C 23 1 A 24 1 D 25 1 D 26 4 ( 1, 2, 2, 3 ) and ( -5, -4, -3, -2, -1, 0, 2, 2, 4, 5, 6, 7, 8, 9 ) Both have the same mode, 2 and the same mean, 2. However, the second set has a lot more terms. The average/ mean is still 2 27 5 Norm. Distribution is a bell curve. Half is below mean, half is above. Answer = 1/2 28 more than 20223 years 29 5 1) The experiment must have a fixed number of trials. 2) The trials must be independent. 3) Each trial must have all outcomes classified into two categories. 4) The probabilities must remain constant for each trial. 30 5 Number of ways to obtain a license plate with at least one digit repeated = 1000 – 5040 = 4960 ways 40...
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