Exam style questions - Hodder Plus Home

2 The table shows the number of passengers travelling
on bus number 38B into town during one day.
Number of
passengers on bus
Number of buses
(frequency)
Less than 10 5
10−19 24
20−29 19
30−39 12
40–49 7
50–59 3
Draw a bar chart to illustrate this information. [3]
3 Amelia surveyed some students in her school to
find out each student’s favourite pet.
Here are her results.
Dog Cat Other Total
Boys 24 17
Girls 27 62
Total 38 45
a Copy and complete the table. [3]
b How many students did she ask [1]
c How many girls chose ‘cat’ [1]
4 These data show the number of text messages
received by each of 80 people in a single week.
27 56 32 8 31 90 24 48 52 31
18 34 56 73 52 55 19 18 3 67
56 13 28 35 69 27 38 59 21 53
36 34 71 57 32 43 65 48 33 29
16 36 47 78 41 60 74 36 22 41
25 29 13 27 55 43 32 4 37 63
47 81 92 78 41 57 34 28 19 62
64 24 14 7 34 35 49 36 29 84
a Using groups of 1 to 20, 21 to 40, 41 to 60, 61
to 80, and so on, produce a frequency table to
show the data. [2]
b Draw a bar chart to illustrate the results. [2]
5 Anil and Ben carried out a survey to find the
number of absences per week in their school year
group over a period of 40 weeks. The results are
shown below.
15 20 31 27 39 52 31 16 17 8
22 31 17 21 16 34 26 27 11 6
4 45 57 31 24 23 22 15 14 43
41 32 27 24 35 18 29 31 23 44
To analyse their results they each decided to group
their data and make a frequency table.
Frequency
a Anil chose these groups: 0−10, 10−20, 20−30,
30−40, 40−50, 50−60.
Explain why these groups are unsuitable. [1]
b Ben chose these groups: 0−9, 10−19, 20−29,
30−39, 40−49, 50−59.
Complete the following frequency table using
Ben’s groups of number of absences.
Absences Tally marks Frequency
0−9
10−19
20−29
30−39
40−49
50−59
[2]
c On the grid below draw a bar chart to show the
distribution of number of absences.
13
12
11
10
9
8
7
6
5
4
3
2
1
0
4 Decimals
Here is an exam question ...
In one day, Dave uses 13.8 units of electricity. The
price of electricity is 17.5p per unit.
Calculate the cost of the electricity Dave uses that
day. [2]
... and its solution
Cost = 13.8 × 17.5p
= 241.5p
= £2.42 to nearest penny
Number of absences
[3]
© Hodder Education 2011 Unit A
3