The mode of the following data is: x : 10, 12, 14, 16, 18, 20, 22 f : 4, 6, 10, 11, 21, 10, 5a.10b.14c.18d.21

The mode of a set of data is the number that appears most frequently. In this case, we are given a frequency distribution, where 'x' represents the data values and 'f' represents the frequency of each value.

Here are the steps to find the mode:

1. Look at the 'f' values, which represent the frequency of each 'x' value.
2. Identify the highest 'f' value. The highest 'f' value in this data set is 21.
3. The 'x' value that corresponds to this highest 'f' value is the mode.
4. In this case, the 'x' value that corresponds