Mean , Median, and Mode . In Exercises 10–16 , find the mean, median , and mode , and answer any additional questions. 12. Lead in Medicine. Ayurveda is a traditional medical system commonly used in India. Listed below are the lead concentrations (in pg/g) measured in different Ayurveda medicines (manufactured in the United States). (Data from “Lead, Mercury, and Arsenic in U.S. and Indian Manufactured Ayurvedic Medicines Sold via the Internet,” by Saper et al., Journal of the American Medical Association, Vol. 300, No. 8.) What do the decimal values of the listed amounts suggest about the precision of the measurements? 3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5
Mean , Median, and Mode . In Exercises 10–16 , find the mean, median , and mode , and answer any additional questions. 12. Lead in Medicine. Ayurveda is a traditional medical system commonly used in India. Listed below are the lead concentrations (in pg/g) measured in different Ayurveda medicines (manufactured in the United States). (Data from “Lead, Mercury, and Arsenic in U.S. and Indian Manufactured Ayurvedic Medicines Sold via the Internet,” by Saper et al., Journal of the American Medical Association, Vol. 300, No. 8.) What do the decimal values of the listed amounts suggest about the precision of the measurements? 3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5
Solution Summary: The author explains how the decimal values of the listed amounts suggest the precision of measurements. The arithmetic mean is the most commonly used measure of central tendency.
Mean, Median, and Mode. In Exercises 10–16, find the mean, median, and mode, and answer any additional questions.
12. Lead in Medicine. Ayurveda is a traditional medical system commonly used in India. Listed below are the lead concentrations (in pg/g) measured in different Ayurveda medicines (manufactured in the United States). (Data from “Lead, Mercury, and Arsenic in U.S. and Indian Manufactured Ayurvedic Medicines Sold via the Internet,” by Saper et al., Journal of the American Medical Association, Vol. 300, No. 8.) What do the decimal values of the listed amounts suggest about the precision of the measurements?
3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5
Definition Definition Characteristic of data to concentrate at certain values, usually in the center of the distirbution. The central tendency of the data is measured by descriptive statistics like mean, median, and mode, which are known as measures of central tendency. Depending upon the type of data under study, some measures of central tendency become more appropriate to use than others.
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