Cambridge International Mathematics

(Tina Sui) #1
16 Assumed Knowledge (Geometry and graphs)

Type of fruit Frequency
Apple 20
Banana 24
Grapes 3
Orange 11
Mandarin 10
Nectarine 7
Pear 2
Peach 3

5 At a school, the year 11 students were asked to nominate their favourite
fruit. The following data was collected:
a How many year 11 students were there?
b What was the most popular fruit?
c What percentage of year 11 students choose mandarins as their
favourite fruit?
d The school canteen sells apples, bananas and pears. What
percentage of year 11 students will be able to order their favourite
fruit?

6 The table below displays the percentage of people with each blood type, categorised by country.

Blood Type
Austria 30% 7% 33% 8% 12% 3% 6% 1%
Canada 39% 7% 36% 7% 8% 1% 2% 1%
France 36% 6% 37% 7% 9% 1% 3% 1%
Hong Kong 40% 0 :3% 26% 0 :3% 27% 0 :2% 6% 0 :2%
South Korea 27% 0 :3% 34% 0 :3% 27% 0 :3% 11% 0 :1%
United Kingdom 37% 7% 35% 7% 8% 2% 3% 1%
USA 37% 7% 36% 6% 9% 1% 3% 1%

7

Age Total Crashes Fatalities
16 ¡ 24 73 645 243
25 ¡ 34 58 062 173
35 ¡ 44 49 600 123
45 ¡ 54 36 658 70
55 ¡ 64 19 833 58
65 ¡ 74 15 142 58
75 ¡ 84 7 275 45
85+ 937 9

The table shows car crashes by age group over a one year
period in an English county.
a Which age group has:
i the most crashes ii the least crashes?
b What percentage of crashes does the 55 - 64 age group
have compared with:
i the 16 - 24 age group ii all age groups?

Telling Statistics
Crashes by age

01020304050

5

10

distance (km)

time (minutes)

O+ O¡ A+ A¡ B+ B¡ AB+ AB¡

a What percentage of Canadians have type B+blood?
b In which countries is A+the most common blood type?
c Which of the countries listed has the highest percentage of population with type AB+blood?
d Which blood type is the fourth most common in the USA?
e In which country is B+more common than A+?

8 The graph alongside shows the distance June travels
on her morning jog. Use the graph to determine:
a the distance she jogs
b the time taken for her jog
c the distance travelled after 15 minutes
d the time taken to jog the first 6 km.
e the average speed for the whole distance.

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