CHAPTER 4:STATISTICS II.

PAPER 1.

1. Table 1 shows the number of computer sets

sold by three shops in November.

Shops Number of computer sets

P 60

Q 135

R 165

The data is represented in a pictograph by

using the symbol to represent 15

computer sets sold. How many symbols are

required to epresent the number of the

computer sets sold in shop R?

A 3 B 4 C 9 D 11

2. Diagram 1 is a pictograph showing the number

of students in accordance to the different

categories of their favourite sports.

Badminton

Basketball

Hockey

Football

75

Calculate the difference between the numbers

of students for the most popular sport and the

least popular sport.

A 15 B 25 C 50 D 75

3. Table 2 shows the number of clothes collected

by a group of people to donate to an orphan

home.

Number of

clothes 10 11 12 13 14 15

Frequency 4 5 6 3 1 2

Calculate the mean number of clothes collected

by a person.

A 2.9 B 9.6 C 12.5 D 41.7

4. Table 3 shows the mrks scored by a group of

students in a Science quiz.

Marks 1 2 3 4 5

Number of

students 2 3 5 2 1

The median for the data is

A 1 B 2 C 3 D 4

5. Find the mode of 4, 5, 5, 2, 3, 2, 1, 2, 4, 3.

A 5 B 4 C 3 D 2

6. Table 4 shows the data of the number of

students in 5 classes.

Class 3A 3B 3C 3D 3E

Number of

students 25 27 24 26 18

If the data is represented by a pie chart, find the

angle of sector representing the number of

students in class 3D.

A 50o B 65

o C 78

o D 112

o

7. The mean marks of 4 students is 75. If each

student’s mark is decreased by 3, find the new

mean of their marks.

A 62 B 70 C 72 D 75

8.

Based on the data above, calculate the

difference between the mode and the median.

A 1 B 2 C 3 D 4

9.

Based on data above, given the mode is 2. Find

the mean of the set of data.

A 2 B 3 C 4 D 6

10. Table 5 shows the size of shirts odered by a

group of students.

Size of shirt S M L XL

Number of

students 12 18 10 13

What is the median size for the shirts?

A S B M C L D XL

2 5 3 2 6 4 3 2

Table 1

represents 25 students

Diagram 1

Table 2

Table 3

Table 4

7, 6,2,4,x, 3

Table 5

PAPER 2.

1.

The data below shows the number of

aluminium tins collected by a group of

students in a recycling campaign.

a)

Complete the frequency table at the

answer space, based on the data above.

b) Determine the mode.

25 20 30 20 20 35 35 20

35 40 25 25 20 30 30 35

35 40 40 40 25 25 30 25

Answer:

a)

b)

Number of

tins 20 25 30 35 40

Frequency

2.

The table shows the number of tourists who

visit a tourist spot on a certain day.

Country Number of tourists

China 35

India 10

Japan 30

Europe 25

The information for tourist from Europe is

shown in the pie chart at the answer space.

Complete the pie chart based on the data

given.

Answer:

3

Based on the frequency table above, draw

the line graph to represent the data.

Days Number of calls

Monday 30

Tuesday 40

Wednesday 25

Thursday 35

Friday 10

Answer:

Europe

0

4.

The pie chart shows the modes of transport

to school used by all the Form 3 students in

a school.

The total number of Form 3 students in the

school is 320.

a) What is the percentage of students who

go to chool by bus?

b) Which is the least mode of transport used

by the students?

c) State the fraction of studets who go to

school by car.

d) Find the total numbers of students who

walk to school.

Answer:

a)

b)

c)

d)

5.

The table shows the hours spent on watching

television during one evening by a group of

students.

Number

of hours

Number

of

students

1 6

2 8

3 13

4 10

5 5

In the answer space, construct a bar chart to

represent all the information in the table.

Answer:

6.

10 girls and 15 boys took part in a

Mathematics quiz. The mean score of the

girls and boys are 4.5 and 4 respectively.

Calculate the mean score of all the

participants.

Answer:

Car

72o

126o 54o 18o

Bicycle

Walk

Bus

Motorcycle

Car