1. The problem asks to estimate the standard deviation of calories in Child and Adult cereals based on the dotplots provided. 2. Standard deviation measures the spread of data around the mean. A larger spread means a higher standard deviation. 3. For the Child cereals dotplot, most dots cluster tightly around 110 calories, with few dots spread out. This indicates a smaller spread and thus a smaller standard deviation. 4. For the Adult cereals dotplot, dots are more spread out across a wider range of calories (from about 50 to 160), indicating a larger spread and thus a larger standard deviation. 5. Based on the visual spread and the multiple choice options given, the standard deviation for Child cereals is closest to 6.5. 6. For Adult cereals, the standard deviation is closer to 55, reflecting the wider spread of calorie counts. Final answers: - Standard deviation for Child cereals: $6.5$ - Standard deviation for Adult cereals: $55$