This page focuses on determining the mass of a circulating United States penny and explores methods for analyzing data related to this measurement. It discusses the importance of defining the problem ...This page focuses on determining the mass of a circulating United States penny and explores methods for analyzing data related to this measurement. It discusses the importance of defining the problem precisely and collects preliminary data from seven pennies to illustrate concepts. Measures of central tendency, including the mean and the median, are introduced as ways to summarize data, with the mean being more sensitive to extreme values than the median.