course Mth 152 wnмassignment #014 014. `query 14 Liberal Arts Mathematics II 03-03-2008
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22:16:50 query problem 13.1.6 freq dist 35 IQ scores class width 5
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RESPONSE --> 91-95 1/50 2% 96-100 3/50 6% 101-105 5/50 10% 106-110 7/50 14% 111-115 12/50 24% 116-120 9/50 18% 121-125 7/50 14% 126-130 4/50 8% 131-135 2/50 4%
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22:17:10 ** These numbers might or might not be completely accurate, but the calculation of the relative frequencies as percents follows from the tallies: 91-95 1 1/50 = 2% 96-100 3 3/50 = 6% 101-105 5 5/50 = 10% 106-110 7 7/50 = 14% 111-115 12 12/50 = 24% 116-120 9 9/50 = 18% 121-125 8 8/50 = 16% 126-130 3 3/50 = 6% 131-135 2 2/50 = 4% **
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RESPONSE --> Correct answer.
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22:21:05 query problem 13.1.10 stem and leaf for yards gained by 44 rushers
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RESPONSE --> 0 3 7 1 2 6 8 9 2 2 4 5 8 9 9 3 0 2 3 3 6 6 7 9 4 0 1 2 3 3 5 6 9 5 1 4 5 8 6 0 2 7 7 3 3 9 8 6 8 9 4 10 2 11 2 12 3
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22:21:28 ** In order we get the following: 0 3 7 1 2 6 8 9 2 2 4 5 8 9 9 3 0 2 3 3 6 6 7 9 4 0 1 2 3 3 5 6 9 5 1 4 5 8 6 0 2 7 7 3 3 9 8 6 8 9 4 10 2 11 2 12 3 **
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RESPONSE --> Correct answer.
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22:25:19 query problem 13.1.35 empirical probability distribution for letters of alphabet
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RESPONSE --> .08 + .13 + .065 + .08 + .03 = .385 .08/.385 = .207 .13/.385 = .337 .065/.385 = .168 .08/.385 = .207 .03/.385 = .077 .207 + .337 + .168 + .207 + .077 = .996 rounded to 1
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22:25:37 ** The probabilities for A, E, I, O, U are: .08. .13, .065, .08, .03. The sum of these probabilities is .385 The probabilities of the letters given a vowel: .08 / .385 = .208 .13 / .385 = .338 .065 / .385 = .169 .08 / .385 = .208 .03 / .385 = .078 These probabilities total 1. **
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RESPONSE --> Correct answer.
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