Answer:
D. 78
Step-by-step explanation:
1. Define/explain
Median - the 'middle number' of a data set.
In order to find the median of a data set, you must first put the numbers in numerical order.
2. Arrange/order.
78, 85, 74, 97, 85, 90, 71, 75, 73
↓
71, 73, 74, 75, 78, 85, 85, 90, 97
3. Solve.
Lastly, the median is the 'middle number' of a data set.
71, 73, 74, 75, 78, 85, 85, 90, 97
4. Conclude.
I, therefore, believe the median of this data set is 78.
