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The Value Of A Penny: Mass Lab

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Based on the experiment of ‘The Value of a Penny: Mass Lab”’, it is seen from the data table and believed that 1982 was the year that the penny started to devalue. The prediction of the year 1968, had a percent error of 0.71%(when rounded to the nearest hundredth). It is seen from the data that starting from 1960 to 1981, the mass of the penny was around 3.1 and 3.2 grams which shows it remained similarly constant. Then, after the decrease of 0.6 grams from 1981 to 1982, the range from 1982 to 1997 stayed at around 2.5 and 2.6 grams. This supports the claim because it shows how much the mass of the penny has altered over the course of almost around 40 years. After doing research, https://www.usmint.gov stated that before 1982 a penny was composed

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