14 , 6, 4, 12 what is the mean

The mean of these numbers is calculated by adding them all together and then dividing by the total number of values.

So,

(14 + 6 + 4 + 12) / 4 = 36 / 4 = 9

Therefore, the mean of the numbers 14, 6, 4, and 12 is 9.