1. **State the problem:** Find the total weight in ounces of the three kittens that weigh the least. 2. **Identify the weights of the kittens:** From the line plot, the kitten weights in pounds are approximately 0.75, 1.0, 1.25, 1.25, 1.5, and 1.5. 3. **Select the three lightest kittens:** These are 0.75, 1.0, and 1.25 pounds. 4. **Calculate their total weight in pounds:** $$0.75 + 1.0 + 1.25 = 3.0$$ pounds. 5. **Convert pounds to ounces:** There are 16 ounces in 1 pound. 6. **Use the conversion formula:** $$\text{Total ounces} = 3.0 \times 16$$ 7. **Calculate:** $$3.0 \times 16 = 48$$ ounces. **Final answer:** The total weight of the three lightest kittens is **48 ounces**.