Hi,The stem-and-leaf display below shows the result of a survey on 50 students on their satisfaction with their school with the higher scores represent higher level of satisfaction.

Stem-and-Leaf Display

Stem unit 10

Statistics 4| 1 3 6 6 7

Sample: Size 50 5| 0 0 3 8 9

Mean: 71.06 6 |0 1 1 4 4 5 7 7 9 9

Median: 73.5 7 |0 0 0 1 3 4 4 5 5 6 6 6 7 8 8

Std. Deviation: 14.13695 8 |0 1 1 3 4 4 5 7 7 8 9

Minimum: 41 9 |0 2 2 7

Maximum: 97

1) Referring to Scenario 4-4, what was the highest level of satisfaction? In the stem-and-leaf display, the highest stem value is 9, and within that row, the highest leaf value is 7. So the highest level of satisfaction is 9*10 + 7 = 97.

Why should I multiply 9*10 and sum 7?