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Course: 8 ನೇ ತರಗತಿ > Unit 6
Lesson 4: ದ್ವಿಮುಖ ಕೋಷ್ಟಕಗಳು- Two-way frequency tables and Venn diagrams
- Two-way frequency tables
- Reading two-way frequency tables
- Two-way frequency tables
- Two-way relative frequency tables
- Two-way relative frequency tables
- Reading two-way relative frequency tables
- Interpreting two-way tables
- Interpreting two-way tables
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Two-way frequency tables
Learn how to read and use two-way frequency tables.
Let's jump right in and look at a two-way frequency table that came from asking students whether they prefer cats or dogs.
Preference | Male | Female |
---|---|---|
Prefers dogs | ||
Prefers cats | ||
No preference |
The columns of the table tell us whether the student is a male or a female. The rows of the table tell us whether the student prefers dogs, cats, or doesn't have a preference.
Notice that there are two variables-- gender and preference-- this is where the two in two-way frequency table comes from.
The cells tell us the number (or frequency) of students. For example, the is in the male column and the prefers dogs row. This tells us that there are male students who prefer dogs.
Row and column totals
To find the number of students that prefer cats, we just add up the number of students in the prefers cats row:
Preference | Male | Female |
---|---|---|
Prefers dogs | ||
Prefers cats | ||
No preference |
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