The grades of eight students on a 10 point test were 3, 4, 4, 6, 7, 7, 8, and 10. Part 1 out of 3 a. Compute the mean of these test scores to the nearest 0.01. B. Compute the standard deviation to the nearest 0.01. c. Another class took the same test and had the same mean. What can be said about the two sets of scores if the second class had a standard deviation of 2? A. The test scores for the second class are less spread out about the mean than the test scores for the first class. B. The test scores for the second class have the same spread about the mean as the test scores for the first class. C. The test scores for the second class are more spread out about the mean than the test scores for the first class