1. The problem is to fill in the missing row for the stem-and-leaf diagram showing the number of visitors to a cafe each day. 2. We are given visitor numbers: 102, 115, 91, 113, 94, 105, 97, 116, 93, 110, 99, 118, 104, 101. 3. The stem represents the tens digit; the leaves represent the units digits for number of visitors. 4. For stem 9 (90s), leaves are 1, 3, 4, 7, 9 corresponding to 91, 93, 94, 97, 99. 5. For stem 10 (100s), leaves are 1, 2, 4, 5 corresponding to 101, 102, 104, 105. 6. The missing stem is 11 (110s); the numbers falling in this range are 110, 113, 115, 116, 118. 7. Extract the units digits of these numbers: 0 (from 110), 3, 5, 6, 8. 8. Thus, the completed stem-and-leaf row for 11 is: 11 | 0 3 5 6 8. Final answer: The missing row in the stem-and-leaf diagram is $$\text{11 | 0 3 5 6 8}$$.