(number of parts) + 1
-In this case, 5 'parts'. Add one, divide by two.
-count three items in to find the median.
-reorder the sequence from smallest to largest, making it: 2, 2.5, 2.75, 3, 3.75
Answer: 3rd item, 2.75
For mean you'll have to add them all together, then divide by five.