The dot plots show the number of points that Sophia and Valerie each scored in the first 10 basketball games. The mean for Sophia's Basketball is 8.5 points and the mean for Valerie's Basketball games is 15. 5 points. The mean absolute deviation of both distributions is 2 points Part A: The mean number of points scotrd by Valerie is 2 or 7 or 8.5 or 15.5 greater than the mean numbers of points scored by Sophia.

Part B: What multiple of the mean absolute deviation represents the difference in the mean number of points scored by Sophia and Valerie in the first 10 basketball games?

2.5

3.0

3.5

4.0

What is the measure of the smallest angle in the diagram? 15 29 32 45

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?