One class has a mean of 60 with a standard deviation of 15. The second class has a mean of 58 with a standard deviation of 2. What could be concluded?
a. Both classes need remediation.
b. The first class is significantly more capable
c. The scores in the second class are more varied.
d. There are greater student differences in the first class.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126