Answer:
Below in bold.
Step-by-step explanation:
Arrange in ascending order:
1, 3, 4, 4, 5, 5, 5, 8, 9, 9, 11.
The median ( the middle value) = 5.
The mode (the most frequent number) = 5.
The mean = ( the sum of 1, 3, 4, 4, 5, 5, 5, 8, 9, 9, 11) / 11 = 64/11
= 5.82.
