Categorical Frequency
1. **State the problem:** We need to construct a categorical frequency distribution for the given data on how much trust people place in the information they read on the Internet.
2. **List the classes:** The classes are categories of trust: A (trust in everything), M (trust in most), H (trust in about half), S (trust in a small portion).
3. **Tally the data:** Count each occurrence of A, M, H, and S in the data.
Data: M M M A H M S M H M S M M M M A M M A M M M H M M M H M H M A M M M H M M M M M
Tally:
- A: |||
- M: ||||||||||||||||||||||||||||
- H: ||||
- S: ||
4. **Frequency:** Count the tallies.
- A: 4
- M: 26
- H: 5
- S: 2
5. **Calculate total number of values:**
$$n = 4 + 26 + 5 + 2 = 37$$
6. **Calculate percent (relative frequency) for each class:**
$$\text{Percent} = \frac{f}{n} \times 100\%$$
- A: $$\frac{4}{37} \times 100 \approx 10.81\%$$
- M: $$\frac{26}{37} \times 100 \approx 70.27\%$$
- H: $$\frac{5}{37} \times 100 \approx 13.51\%$$
- S: $$\frac{2}{37} \times 100 \approx 5.41\%$$
**Final table:**
| Class | Tally | Frequency | Percent |
|-------|-------|-----------|---------|
| A | ||| | 4 | 10.81% |
| M | |||||||||||||||||||||||||||| | 26 | 70.27% |
| H | |||| | 5 | 13.51% |
| S | || | 2 | 5.41% |
This completes the categorical frequency distribution for the given data.