To determine the range for the average weight of a grapefruit in each five-pound bag, we need to identify the minimum and maximum average weights among the given data.
Here's a step-by-step solution:
1. List the average weights of grapefruits in each bag:
- Bag 1: 7.1 oz
- Bag 2: 6.9 oz
- Bag 3: 7.3 oz
- Bag 4: 7.6 oz
- Bag 5: 8.1 oz
- Bag 6: 7.5 oz
2. Identify the minimum average weight:
In the list of weights [7.1, 6.9, 7.3, 7.6, 8.1, 7.5], the smallest value is 6.9 oz.
3. Identify the maximum average weight:
In the same list of weights, the largest value is 8.1 oz.
4. Determine the range for the average weight of a grapefruit in these bags:
The weight ranges from the minimum value of 6.9 oz to the maximum value of 8.1 oz.
Thus, using the results from Lucilla's calculations, the average weight of a grapefruit in a five-pound bag should be between 6.9 oz and 8.1 oz. Therefore, the correct answer is:
6.9 oz and 8.1 oz.