Use the following stem and leaf plot to write out the individual numbers and calculate the mean, median and range for the data

Stem and leaf plot
4 1
5 2 7 8
6 5 6
7 0 5 8
8 0 1
9 5

Use the stem and leaf plot to the right to answer the questions below.

A. How many data values are in the set?

B. What is the greatest and least value from the set?

C. What is the median and range?

D. Is the value 85 in the data set? Explain.