1. **Problem:** Construct a frequency distribution table for weekly physical training hours of 30 soldiers with data: 3, 4, 5, 6, 7, 8, 3, 4, 5, 6, 7, 8, 4, 5, 6, 7, 8, 5, 6, 7, 8, 4, 5, 6, 7, 3, 4, 5, 6, 7. 2. **Formula and rules:** Frequency distribution groups data into classes (intervals) and counts occurrences in each class. 3. **Step 1: Determine range and class intervals.** - Minimum value = 3 - Maximum value = 8 - Range = $8 - 3 = 5$ - Choose class width = 1 (since data are integers and spread is small) - Classes: 3, 4, 5, 6, 7, 8 4. **Step 2: Count frequencies for each class:** - 3 appears 3 times - 4 appears 5 times - 5 appears 6 times - 6 appears 5 times - 7 appears 6 times - 8 appears 5 times 5. **Step 3: Construct frequency table:** | Class | Frequency | |-------|-----------| | 3 | 3 | | 4 | 5 | | 5 | 6 | | 6 | 5 | | 7 | 6 | | 8 | 5 | This table summarizes the distribution of weekly training hours among soldiers. **Final answer:** Frequency distribution table with classes 3 to 8 and corresponding frequencies as above.