Data: (12 ,8 , 6 , 12 , 16 , 12 ) median

Ascending order=  6, 8, 12, 12, 12, 16

No of observations (n) = 6
Median = Mean of the values of (n/2) and (n/2+1)
             = Mean values of 3rd and 4th values
             = 12+12/2
             = 12
Therefore, median = 12

Mode = Most number of observations= 12

Your data is (12,8,6,12,16,12) for median and mode you take the least to greatest. Median = Middle So you take the Middle number your data table should look like this: (6,8,(12,+12),12,16) so the median is 12+12/How many numbers that are in the middle so you get the number 12.
For the mode just Think Mode is Most Whatever number that is the most in the Data (6,8,12,12,12,16) so 12 is the mode for the answer. and 12 is the median. Hope this Helps