Revision Library

Stem and Leaf: Fluency and Exam Drill (Part 2) - Worksheets, Questions and Revision

12 original exam-style questions - 6 pages of questions with a full mark scheme - free printable PDF.

Download PDFJump to mark scheme (page 7)Read the revision guide

More on this topic

Next in this strand

« Previous: Stem and Leaf: Fluency and Exam DrillNext: Pie Charts »
Revision Library
revisionlibrary.co.uk
GCSE · Handling Data

2.16DB Stem and Leaf: Fluency and Exam Drill (Part 2)

EDEXCEL 1MA1 · Calculator allowed · about 55 minutes
Total Marks
Name: _______________________________    Date: ____ / ____ / ______
Answer ALL questions. Show all your working.
1
A transport officer in Leeds recorded the number of minutes a bus was delayed each day for a week.
StemLeaf
02 2 5 8
11 4
Key: 1 | 4 means 14 minutes

Write down the mode of the delay times.
(Total for Question 1 is 1 mark)
2
A teacher recorded the number of emails she received each day for one working week.
StemLeaf
23 5 9
32 4
Key: 3 | 2 means 32 emails

State how many days had more than 30 emails.
(Total for Question 2 is 1 mark)
3
A cafe in Leicester recorded the number of coffees sold in each 10-minute period during the morning rush.
StemLeaf
03 6 6 9
11 4 7
Key: 1 | 4 means 14 coffees

Write down how many leaves are shown in the stem 0 row.
(Total for Question 3 is 1 mark)
4
At a school fundraiser in Preston, pupils recorded how many raffle tickets each tutor group sold. The leaves for stem 3 have not been written in numerical order.
StemLeaf
24 7
38 2 5 2
Key: 3 | 8 means 38 raffle tickets

Write the leaf values for stem 3 in the correct order.
(Total for Question 4 is 1 mark)
5
A vet in Derby recorded the weight, in kg, of 6 dogs brought in for a check-up.
StemLeaf
12 8
20 4 4 9
Key: 2 | 4 means 24 kg

Write down the weight represented by the leaf 9 in the stem 2 row.
(Total for Question 5 is 1 mark)
6
A gardening club in Cardiff measured the height, in cm, of 6 seedlings. The stem and leaf diagram shows the heights.
StemLeaf
04 6 9
12 3 7
Key: 1 | 2 means 12 cm

Show that the median height is 10.5 cm.
(Total for Question 6 is 2 marks)
7
A sorting office in Sheffield recorded the weight, in kg, of parcels processed in one hour.
StemLeaf
12 8
20 3 6
31
Key: 2 | 3 means 2.3 kg

Work out the range of the parcel weights.
(Total for Question 7 is 2 marks)
8
Priya recorded the time, in minutes, that 7 pupils spent on their homework: 8, 15, 19, 21, 24, 32, 35. She then drew this stem and leaf diagram, but made one mistake when entering the data.
StemLeaf
0
15 8 9
21 4
32 5
Key: 2 | 4 means 24 minutes
(a)One value has been written in the wrong row of Priya's diagram. State the value, as it appears in Priya's diagram, and the row (stem) it should have been placed in instead.(2)
(b)Write the corrected leaf row for stem 0.(1)
(Total for Question 8 is 3 marks)
9
A school in Bristol recorded, in a back-to-back stem and leaf diagram, the time (seconds) taken by 6 boys and 6 girls to complete a puzzle.
Boys (leaf)StemGirls (leaf)
8 5 240 4 6 7
6 3 150 5
Key: for the boys, 4 | 2 means 42 seconds. For the girls, 4 | 0 means 40 seconds.

For the boys, the leaf closest to the stem is the smallest digit, so for stem 4 the boys' times are 42, 45 and 48 seconds.
(a)Work out the median completion time for the boys.(1)
(b)Work out the median completion time for the girls.(1)
(c)By comparing the medians and the ranges, state which group had the faster typical time and which group was more consistent. Give a reason for each answer.(2)
(Total for Question 9 is 4 marks)
10
At a fishing competition on a lake in Norfolk, anglers recorded the weight, in kg, of each fish caught.
StemLeaf
10 4
21 5
30 5
Key: 2 | 1 means 2.1 kg

Work out the mean weight of the fish caught.
(Total for Question 10 is 2 marks)
11
At a gym in Manchester, the number of push-ups completed by 8 members in one minute was recorded.
StemLeaf
08 9
12 2 5 7
20 3
Key: 1 | 5 means 15 push-ups
(a)How many members completed fewer than 15 push-ups?(1)
(b)Calculate the interquartile range (IQR) of the number of push-ups completed.(3)
(Total for Question 11 is 4 marks)
12
The mean time that 7 students spent revising on Sunday was 24 minutes. The stem and leaf diagram shows the times for 6 of the students; the leaf for the 7th student, shown as n in stem 3, is unknown.
StemLeaf
08
15 9
22 8
3n
41
Key: 2 | 2 means 22 minutes

Work out the value of n.
(Total for Question 12 is 4 marks)
Mark scheme · 2.16DB Stem and Leaf: Fluency and Exam Drill (Part 2)

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Mark your answers

This checks your answers in your browser, stores nothing on a server and needs no account.

Question 1

1 mark

Question 2

1 mark

Question 3

1 mark

Question 4

1 mark

Question 5

1 mark

Question 6

2 marks

Question 7

2 marks

Question 8

3 marks
Did your answer earn the marks?

Question 9

4 marks
Did your answer earn the marks?

Question 10

2 marks

Question 11

4 marks
Did your answer earn the marks?

Question 12

4 marks
Mark my answers