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The life expectancy of a fluorescent light bulb is given by the number of hours that it will burn. From the following frequency distribution, find the sample standard deviation s (in h). (Use the mean value 2,192.6 h to calculate the sample standard deviation rounded to the nearest whole number.) Life of bulb Midpoint Frequency Product xf (hours) -0.5-499.5 249.5 3 748.5 499.5-999.5 749.5 12 8,994 999.5-1,499.5 1,249.5 13 16,243.5 1,499.5-1,999.5 1,749.5 16 27,992 1,999.5-2,499.5 2,249.5 28 62,986 2,499.5-2,999.5 2,749.5 32 87,984 2,999.5-3,499.5 3,249.5 13 42,243.5 3,499.5-3,999.5 3,749.5 6 22,497

The life expectancy of a fluorescent light bulb is given by the number of hours that it will burn. From the following frequency distribution, find the sample standard deviation s (in h). (Use the mean value 2,192.6 h to calculate the sample standard deviation rounded to the nearest whole number.) Life of bulb Midpoint Frequency Product xf (hours) -0.5-499.5 249.5 3 748.5 499.5-999.5 749.5 12 8,994 999.5-1,499.5 1,249.5 13 16,243.5 1,499.5-1,999.5 1,749.5 16 27,992 1,999.5-2,499.5 2,249.5 28 62,986 2,499.5-2,999.5 2,749.5 32 87,984 2,999.5-3,499.5 3,249.5 13 42,243.5 3,499.5-3,999.5 3,749.5 6 22,497

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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The life expectancy of a fluorescent light bulb is given by the number of hours that it will burn. From the following frequency distribution, find the sample standard deviation s (in h). (Use the mean value 2,192.6 h to calculate the sample standard deviation rounded to the nearest whole number.) Midpoint Frequency Product xf Life of bulb (hours) -0.5-499.5 249.5 748.5 499.5-999.5 749.5 12 8,994 999.5-1,499.5 1,249.5 13 16,243.5 1,499.5-1,999.5 1,749.5 16 27,992 1,999.5-2,499.5 2,249.5 28 62,986 2,499.5-2,999.5 2,749.5 32 87,984 2,999.5-3,499.5 3,249.5 13 42,243.5 3,499.5-3,999.5 3,749.5 6. 22,497
Transcribed Image Text:The life expectancy of a fluorescent light bulb is given by the number of hours that it will burn. From the following frequency distribution, find the sample standard deviation s (in h). (Use the mean value 2,192.6 h to calculate the sample standard deviation rounded to the nearest whole number.) Midpoint Frequency Product xf Life of bulb (hours) -0.5-499.5 249.5 748.5 499.5-999.5 749.5 12 8,994 999.5-1,499.5 1,249.5 13 16,243.5 1,499.5-1,999.5 1,749.5 16 27,992 1,999.5-2,499.5 2,249.5 28 62,986 2,499.5-2,999.5 2,749.5 32 87,984 2,999.5-3,499.5 3,249.5 13 42,243.5 3,499.5-3,999.5 3,749.5 6. 22,497
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