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Find the coefficient of variation V for (a) the data in Table 2.29 and (b) the data in Table 2.30. (c) Which data have the greater dispersion? Ans. (a) 0.060, or 6% (b) 0.261, or 26.1% (c) The data of Table 2.30.

Find the coefficient of variation V for (a) the data in Table 2.29 and (b) the data in Table 2.30. (c) Which data have the greater dispersion? Ans. (a) 0.060, or 6% (b) 0.261, or 26.1% (c) The data of Table 2.30.

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter4: Linear Functions
Section4.3: Fitting Linear Models To Data
Problem 19SE: For the following exercises, draw a best-fit line for the plotted data.
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2.44 Find the coefficient of variation V for (a) the data in Table 2.29 and (b) the data in Table 2.30. (c) Which data have the greater dispersion? Ans. (a) 0.060, or 6% (b) 0.261, or 26.1% (c) The data of Table 2.30.
Transcribed Image Text:2.44 Find the coefficient of variation V for (a) the data in Table 2.29 and (b) the data in Table 2.30. (c) Which data have the greater dispersion? Ans. (a) 0.060, or 6% (b) 0.261, or 26.1% (c) The data of Table 2.30.
Table 2.29 Frequency Distribution of Gasoline Prices Price, $ 1.00-1.04 1.05-1.09 1.10-1.14 1.15-1.19 1.20-1.24 1.25-1.29 Frequency 4 6 DESCRIPTIVE STATISTICS 10,000-11,999 12,000-13,999 14,000-15,999 16,000-17,999 18,000-19,999 20,000-21,999 10 15 8 5 Table 2.30 Frequency Distribution of Family Incomes Family Income, $ 22,000-23,999 24,000-25,999 26,000-27,999 28,000-29,999 Frequency 12 14 24 15 13 7 6 4 3 2 100
Transcribed Image Text:Table 2.29 Frequency Distribution of Gasoline Prices Price, $ 1.00-1.04 1.05-1.09 1.10-1.14 1.15-1.19 1.20-1.24 1.25-1.29 Frequency 4 6 DESCRIPTIVE STATISTICS 10,000-11,999 12,000-13,999 14,000-15,999 16,000-17,999 18,000-19,999 20,000-21,999 10 15 8 5 Table 2.30 Frequency Distribution of Family Incomes Family Income, $ 22,000-23,999 24,000-25,999 26,000-27,999 28,000-29,999 Frequency 12 14 24 15 13 7 6 4 3 2 100
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