If the mode of the data: 16, 15, 17, 16, 15, x, 19, 17, 14 is 15, then x =
Answer: B
Let's count the frequency of each number in the data set (excluding x):
Currently, the data is multimodal with modes 15, 16, and 17. For the mode of the entire set to be 15, the value of x must be 15. This would make the frequency of 15 equal to 3, which would be the highest frequency.