Answer:
Median = 23
Mean = 163/7 = 23.3 (1 d.p.)
Explanation:
Given data set:
19, 18, 23, 24, 31, 32, 16
Median
The middle value when all data values are placed in order of size.
Given data values in size order, from smallest to largest:

The middle value is 23, so the median of this data set is 23.
Mean
The sum of all data values divided by the total number of data values.
