Listed below are the lead concentrations (in /xg/g) measured in differ¬ent Ayurveda medicines. Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here are from medicines manufactured in the United States. The data are based on the article “Lead, Mercury, and Arsenic in US and Indian Manufac¬tured Ayurvedic Medicines Sold via the Internet,” by Saper et al., Journal of the American Medical Association, Vol. 300, No. 8. What would be the values of the measures of variation if the medicines contained no lead?
3.0 6.5 6.0 5.5 20.5 7.5 12.0 20.5 11.5 17.5