Final answer:
In analyzing the data sets of penny masses, we need to determine their accuracy and precision. Abbie's data shows more consistency and precision, while James' data is less precise. Without knowing the actual mass, we cannot determine the accuracy, so Abbie's measurements are more precise but less accurate than James'.
Step-by-step explanation:
The question asks which statement about the data sets of penny masses is true. Abbie's data is given as 2.5, 2.4, 2.3, 2.4, 3.0, 3.3, 2.2, 2.4, 2.5, 2.6, 2.6 and James' data is given as 2.9, 3.8, 2.9. The first step in analyzing the data sets is to determine their accuracy and precision. Accuracy refers to how close a measurement is to the actual value, while precision refers to the consistency and reproducibility of the measurements. In Abbie's data set, the measurements range from 2.2 to 3.3, with the majority of measurements falling within the range of 2.3 to 2.6. This suggests that Abbie's measurements are relatively consistent and precise. In James' data set, the measurements range from 2.9 to 3.8, with only two measurements available. These measurements are more spread out and not consistent with each other, suggesting that James' measurements are less precise than Abbie's. However, without knowing the actual mass of the penny, we cannot determine the accuracy of the measurements. Therefore, the correct statement about the data sets is c. Abbie's measurements are more precise, but less accurate than James'.