Statistics Worksheets With Answers - Newbattle High School Page 15
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454.
‘Trylin Yachts’ cost £100 000 new.
The graph shows what price second
hand Trylin yachts are sold for.
1 0 0
(a) Between which years do
9 0
yachts fall in value by the
8 0
largest amount?
7 0
(b) Suggest a connection between
6 0
what you would have to pay
5 0
for a yacht and its age.
4 0
(c) Use the graph to estimate
3 0
how old a yacht might be
2 0
if you spent £50 000 buying
1 0
it second hand.
0
(d) From the graph, how much do
1
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5
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you think an two year old
Age of Yacht (years)
yacht would cost?
5.
A green keeper at Grey Golf Club had terrible trouble trying to get grass to
grow in the rough. He was recommended to try three new grass growing treatments,
one on each of three holes. He hoped for good, steady growth which would then
let him cut the grass to his desired height.
The results are shown in the scatter graphs:
Treatment A
Treatment B
Height
Height
of
* * *
of
* *
Grass
*
Grass
* * *
*
*
* *
*
* * *
* * * * * * *
*
Amount Applied
Amount Applied
Treatment C
Height
of
*
*
Grass
*
*
*
*
*
*
*
*
*
Amount Applied
(a) Comment on the effect each treatment (and the amount used) has on the grass.
(b) If you were the greenkeeper which one would you use? Why?
15
Mathematics: Mathematics 2 (Int 1) Statistics – Student Materials
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