SOLUTION:
To make a stem and leaf plot, we have to arrange out data sets in order (from first digits)
Arranging data
54
60, 61, 62,62
71,72,74,76,78
82, 83,84, 86, 87,
90,92, 95,95,99
Final answers:
A) Stem and leaf plot
B) Range
Range = Highest value - lowest value
Range = 99 - 54
Range = 45