appreciation of numbers

1. APPRECIATION OF
NUMBERS

2. We look at numbers as signs or symbols
used to represent magnitudes or
quantities. The idea of the signs and
symbols was standardized and became
acceptable universally.

3. Numbers are used everyday to represent:
Magnitudes
Quantities
Coding
Others

4. Numbers can be of different scales:
Nominal
Ordinal
Interval
Ratio

5. Nominal numbers refer to the
characteristic or attribute of subjects or
objects that is used for naming, labeling,
and categorizing only.

6. Nominal numbers are used only for naming.
In the nominal scale, numbers lose their
numerical value.
Operating these numbers do not make sense.

7.  Examples of nominal:
1.Cause of death 9. Gender
2. Nationality 10. Major fields
3. Color of the eyes
4. Religious affiliation
5. Color of the skin
6. Race
7. Names
8. Zip code

8. Ordinal numbers refers to the
characteristic of subjects or objects that
is used for ranking and ordering.

9. Examples of ordinal:
Grades (1, 1.1, 1.2, etc.)
Judging (1st place, 2nd place, 3rd places, etc.)
Rating scale (poor, good, excellent)
Ranking of tennis players
Year level
Social status

10. Interval numbers refer to the
characteristic or attribute of subjects or
objects that is of known sizes or
distances.

11. Examples of interval:
UPCAT score
Temperature
IQ

12. Ratio numbers refer to the characteristic or
attribute of subjects or objects that contains
the characteristic of the interval data but in
this case, zero has a true value.

13. Examples:
Height
Weight
Time
Salary
age

14. EVALUATION
1. Look around the classroom. Form a
sentence that has a number mentioned in
it. State what scale the number belongs
to.
2. Why are numbers important?