1.What is the mean daily production?

1.What is the mean daily production? (the answer is (a)1064 but I don't know how did they get. So please show your work)

A) 1064                              Midpoints

B) 1014                             

C) 1114                             

D) 1050                               

E) 200                               

2. The test scores for a class of 200 students are computed. What is the location (position) of the test score associated with the 80