Respuesta :
The answer is C. 19
Rearrange the series from the lowest to the highest value:
1, 2, 3, 5, 19, 19, 20
The mode is the value that occurs most frequently. Number 19 is found twice, so it is the mode.
Rearrange the series from the lowest to the highest value:
1, 2, 3, 5, 19, 19, 20
The mode is the value that occurs most frequently. Number 19 is found twice, so it is the mode.