Answer: a) No. The stems should not be split
Explanation:
The stem and leaf plot should have the last digit of the 140's as the leaf for the 14's, the last digit of the 150's as the leaf for the 15's, the last digit of the 160's as the leaf for the 16's, etc.
14 | 8
15 | 1 4 5
16 | 0 1 2 2 7
17 | 0 1
18 | 0
The stem and leaf plot given in the example has the 150's and 160's split into two different stems which is not correct.