STATISTICS
CONTENT
- Data Presentation (Revision)
- Range of a Set of Values
DATA PRESENTATION
RANK-ORDERED LIST
Rank order means arranging data values from the highest to the lowest.
Example
Some JCSE students scored these grades in a revision test: C, B, D, A, C, C, E, B, D, F, B, D, E, C, A, C, D, B. Represent the data in rank order.
Solution
Here is the rank order list from A to F:
A, A, B, B, B, B, C, C, C, C, C, D, D, D, D, E, E, F
FREQUENCY TABLE
A frequency table shows the number of times a value appears. A frequency table can be prepared for a given data set either vertically or horizontally.
Example
In a class of 30 students seated in six rows of five students each, the class monitor records the following dates of births, row by row.
\(\begin{array}{col1col2…coln}Wed. & Thu. & Sun. & Tue. & Fri. \\Mon. & Wed.
You are viewing an excerpt of this lesson. Subscribing to the subject will give you access to the following:
- NEW: Download the entire term's content in MS Word document format (1-year plan only)
- The complete lesson note and evaluation questions for this topic
- The complete lessons for the subject and class (First Term, Second Term & Third Term)
- Media-rich, interactive and gamified content
- End-of-lesson objective questions with detailed explanations to force mastery of content
- Simulated termly preparatory examination questions
- Discussion boards on all lessons and subjects
- Guaranteed learning