on may 11, 50 randomly selected subjects had their systolic blood pressure recorded twice- the first time at about 9:00am and th
e second time at 2:00pm. if one were to examine the relationship between the morning and afternoon readings, then one might expect the correlation to be
This is an abstraction because Donna generalized a concept — reporting the title or price of a book — to apply to all types of books. Noticing repeated details or common features and removing them is a key element of abstraction.
