• The average length is ________ cm. This is the mean or average. b)• Subtract the highest value from the lowest value: _________ cm. This is the range or spread. c)• Divide this number by 2: _______ cm. This is the approximate ± range from the average. d)• The precision of the measurement can be shown as an average ± range. The precision of the measurement was ________±_____ cm.
