4. Identify the following as nominal level, ordinal level, interval level, or ratio level dat 1. Blood type 2. Amount of money in savings accounts_ 3. Students classified by their reading ability: Above average, Below average, Normal 4. Letter grades on a practical exam 5. Religions 6. Commuting times to work 7. Ages (in years) of nursing students 8. Ice cream flavor preference 9. Years of important historical events

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Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.