Answer:

The given data set is

7,11,12,10,13,14,4,15,x,12

We need to find the value of x if x is the mode of the given data set.

From the given data set it is clear that frequency of

each number is 1 except 12. The frequency of 12 is 2.

Mode: A number with highest frequency is known as mode.

If x=12, then the frequency of 12 is 3, which is highest among the data frequencies.