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55%
The scatter diagram shows the ages and secondhand prices of 10 cars.
10000
a) What type of correlation is shown
by the graph? negative
Secondhand price (£)
b) One of the cars is considered a
'collector's classic', so its age
doesn't affect its price as much.
Write down the apordinates of the
cross that you think represents
this car on the graph.
(8,8)
o
1
2
8
9
10
3 4 5 6 7
Age (years)
Scatter Diagrams
Overview

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?