The stem-and-leaf plot shows cholesterol readings for a group of patients. Two additional readings will be added to the plot. Cholesterol Readings
12
01256 69
13
22 5 7
14
3 358
15
3 34
16
4.4
17
3
17 3 represents 173.
If the two additional readings are 158 and 146, by how many points will the median of the readings increase?
4
5
6
7