3.3 Selecting and using information 89
3 The table below shows the finishing
positions in the Contrey handball league.
The five teams play each other once each.
Three points are awarded for a win and one
for each team in a drawn match.
Team Points
Alency 8
Bresville 7
Argest 5
Euroland 4
Saint Croix 2
How many of the games were drawn?
4 A carpenter is fitting some bookcases to
an alcove, using as much of the space
as possible from floor to ceiling, a height
of 2.5 m. The books to be fitted into the
shelves are 210 mm high and a gap of
at least 30 mm is necessary above each
book so they can be removed. The shelves
are 20 mm thick. The alcove is 1.2 m
wide. The bottom shelf should not be less
than 300 mm from the ground, as the
house-owner cannot bend down easily.
How many shelves can be fitted into the
alcove?
Answers and comments are on page 317.
1 Using the data in the first example above
(tabular information, page 86), draw a
graph of an appropriate type showing the
proportion of types of exercise regularly
taken by the 16–20-year-olds in the sample.
2 The pie charts illustrate the change that
the introduction of the CD in 1985 had on
the recorded-music market. Total annual
sales of all types of recording in 1984
were 170 million and in 1994 they were
234 million.
Cassettes
23% Vinyl
singles
Vinyl 44%
LPs
33%
1984
Vinyl
LPs
2% Cassettes24%
CDs
Vinyl 48%
singles
26%
1994
What, approximately, happened to the
actual annual sales of vinyl singles
between 1984 and 1994?
A They fell by 14 million.
B They fell by 5 million.
C They were unchanged.
D They rose by 17 million.
E They rose by 64 million.
End-of-chapter assignments