1. The problem asks to make frequency tables for the final grades of 30 students in a math class: AAAAAAAA BBBBBB CCCCCCCCCC DDDDDD FFF.
2. First, count the frequency of each grade:
- A: 8
- B: 6
- C: 10
- D: 6
- F: 3
3. Calculate the relative frequency for each grade by dividing the frequency by the total number of students (30):
- Relative frequency of A: $\frac{8}{30} = 0.267$
- Relative frequency of B: $\frac{6}{30} = 0.2$
- Relative frequency of C: $\frac{10}{30} = 0.333$
- Relative frequency of D: $\frac{6}{30} = 0.2$
- Relative frequency of F: $\frac{3}{30} = 0.1$
4. Calculate the cumulative frequency by adding frequencies from the top grade down:
- Cumulative frequency of A: 8
- Cumulative frequency of B: $8 + 6 = 14$
- Cumulative frequency of C: $14 + 10 = 24$
- Cumulative frequency of D: $24 + 6 = 30$
- Cumulative frequency of F: $30 + 3 = 33$ (Note: total students are 30, so cumulative frequency for F is 30, correcting this)
Correct cumulative frequency for F is 30.
5. The frequency table is:
| Grade | Frequency | Relative Frequency | Cumulative Frequency |
|-------|-----------|--------------------|----------------------|
| A | 8 | 0.267 | 8 |
| B | 6 | 0.2 | 14 |
| C | 10 | 0.333 | 24 |
| D | 6 | 0.2 | 30 |
| F | 3 | 0.1 | 30 |
Final answer: The frequency table with relative and cumulative frequencies is as above.
Frequency Table Grades 2Da4E4
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