Answer

1. Which class scored better on average?

   • Class B scored better on average, as it had a mean score of 7.7 compared to Class A's mean score of 7.6.

2. Which class had more consistent scores?

   • Class B had more consistent scores. Consistency in scores is indicated by a lower standard deviation, and Class B has a standard deviation of 0.6, which is lower than Class A's standard deviation of 0.7.

Summary:

• Class B scored slightly better on average.
• Class B had more consistent scores.

Would you like further clarification or details on any of these points?

---

Here are five related questions to expand on these concepts:

1. What is the significance of the standard deviation in evaluating consistency?
2. How would the range of scores differ between these two classes, given their standard deviations?
3. If a third class had a mean of 7.5 and a standard deviation of 0.5, how would it compare to Classes A and B?
4. Can we calculate the probability of a score falling within one standard deviation of the mean for each class?
5. How does the mean and standard deviation relate to the overall distribution of scores?

Tip: A smaller standard deviation indicates that data points are closer to the mean, showing more consistency.