(a)[1]
One building has 67 rooms. State how many people live in this building.
(b)[1]
A different building contains 42 people and 33 rooms. Plot this point on the scatter diagram.
(c(i))[1]
On the scatter diagram, draw a line of best fit.
(c(ii))[1]
In another building there are 45 people. Estimate the number of rooms in this building.
(d)[1]
Which kind of correlation does the scatter diagram display?