Answer:
Median = 13
Step-by-step explanation:
The median of a group of data is the item in the middle.
Given the group of data items:
4,5, 8, 13, 15, 16, 18
Step 1: Place them in numerical order (from lowest to highest)
4, 5, 8, 13, 15, 16, 18
Step 2: Identify the number in the middle
4, 5, 8, 13, 15, 16, 18
The number in the middle is 13, therefore:
The median = 13