What is the slope of this graph?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

True or false? the sum of the differences (% - 7) is never zero for any distribution consisting of n observations.

Great freights a local shipping company, bases its charges on the weight of the items being shipped. in addition to changing 0.40$ per pound, great freights also charges a one-time fee of 10$ to set up a customers account.