Question

Donelle measures the mass of 10 pennies and records her measurements in kilograms. She wants to determine the mean mass of her pennies. What should Donelle do to make it easier to calculate the mean mass of her pennies?

A. Round her measure values to the nearest tenth
B. Convert the units of her measured values to milligrams
C. Convert the units of her measured values to grams
D. Use a computer to perform the mean calculation

Answer 1

A coin's weight is about 4-8 grams. Measuring weight of coins in kg is sort of stupidity. She should measure them in grams.  

C. Convert the units of her measured values to grams