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Doncouse_Jeremy_Week3

# Doncouse_Jeremy_Week3 - Name Jeremy Doncouse ID 92575...

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Name: Jeremy Doncouse ID: 92575 MATH116 Section 3.1: (page 126) 6, 16 Section 3.2: (page 146) 18, 26 Section 3.4: (page 174) 2, 4, 6, 8, 10, 12, 14 Section 3.1: 6 Forbes magazine prints an annual Top-Earning Nonliving Celebrities list. Find the measures of central tendency for these data and comment on the skewness. Figures represent millions of dollars. Kurt Cobain 50 Ray Charles 10 Elvis Presley 42 Marilyn Monroe 8 Charles M. Schulz 35 Johnny Cash 8 John Lennon 24 J.R.R. Tolkien 7 Albert Einstein 20 George Harrison 7 Andy Warhol 19 Bob Marley 7 Theodore Geisel 10 Mean 19 The data is positively skewed. Median 10 Mode 7 Midrange 28.5 16 Find the mean and modal class for each set of data in Excercises 8 and 18 in Section 2-2. Is the average about the same for both sets of data? Exercise 8 Limits f * Xm 2.3-2.9 10 2.6 26 3.0-3.6 12 3.3 39.6 3.7-4.3 6 4 24 4.4-5.0 8 4.7 37.6 5.1-5.7 4 5.4 21.6 5.8-6.4 2 6.1 12.2 42 161 Mean = ∑f * Xm = 161 = 3.8 n 42 Modal Class = 3.0-3.6, or 12, or 3.3 Excersice 18 Limits f * Xm 2.3-2.9 1 2.6 2.6 3.0-3.6 3 3.3 9.9 3.7-4.3 4 4 16 4.4-5.0 16 4.7 75.2 5.1-5.7 14 5.4 75.6 Frequency f Midpoint Xm Frequency f Midpoint Xm

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5.8-6.4 4 6.1 24.4 42 203.7 Mean = ∑f * Xm = 203.7 = 4.9 n 42 Modal Class = 4.4-5.0, or 16, or 4.7 Section 3.2: 18 Baseball Team Batting Averages. Team batting averages for major league baseball in 2005
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