Michele Conway, Belle Cottingham, Alastair Duncombe and, Amanda George Solutions for Exercise 4: Exercise 2

Author:Michele Conway, Belle Cottingham, Alastair Duncombe & Amanda George

Michele Conway Mathematics Solutions for Exercise - Michele Conway, Belle Cottingham, Alastair Duncombe and, Amanda George Solutions for Exercise 4: Exercise 2

Attempt the free practice questions from Exercise 4: Exercise 2 with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Maths Stage 9: Student's Book solutions are prepared by Experienced Embibe Experts.

Questions from Michele Conway, Belle Cottingham, Alastair Duncombe and, Amanda George Solutions for Exercise 4: Exercise 2 with Hints & Solutions

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 3

Harinder wants to record the mass of pineapples for sale in two supermarkets. She expects all pineapples to have a mass between 0.8 kg and 1.3 kg. Complete the headings of this data collection sheet so that it is suitable for recording the data. All intervals should have the same width.

Mass, m kg _____≤m<_____ _____ _____ _____ _____
Supermarket 1          
Supermarket 2          

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 4

Design a data collection sheet that could be used to record the ages of males and females watching a football match at a small stadium.

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 5

Channa works in a hospital. He designs this data collection sheet for recording the length (in cm) of the feet of new-born babies.

Length, x cm Tally Total
0≤x≤10    
10≤x≤20    
20≤x≤25    
25≤x≤27    
27≤x≤30    

Write down two problems with Channa's data collection sheet

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 5

Channa works in a hospital. He designs this data collection sheet for recording the length (in cm) of the feet of new-born babies.

Length, x cm Tally Total
0≤x≤10    
10≤x≤20    
20≤x≤25    
25≤x≤27    
27≤x≤30    

Design a better data collection sheet for Channa to use.

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 6

Gina designs a data collection sheet to record the number of cars passing her house every minute. She tests her data collection sheet by recording the number of cars for 15 one-minute intervals.

Number of cars Tally Total
Under 20    
21-30    
31-40    
41-50    
Over 50    

Explain why Gina should refine her data collection sheet.

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 6

Gina designs a data collection sheet to record the number of cars passing her house every minute. She tests her data collection sheet by recording the number of cars for 15 one-minute intervals.

Number of cars Tally Total
Under 20    
21-30    
31-40    
41-50    
Over 50    

Design a new data collection sheet that might be more suitable for Gina to use.

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 7

Victor and Noor are investigating the area of postage stamps. They design these data collection sheets. 

Victor   Noor
Area, A cm2 Tally Area, A cm2 Tally
0<A≤2   0-10  
2<A≤4   20-30  
4<A≤6   40-50  
6<A≤8   60-70  
8<A≤10   80-90  
10<A≤12      

Whose data collection sheet would be more suitable for recording the areas of stamps? Give reasons for your answer.

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Maths Stage 9: Student's Book>Chapter 10 - Data Collection and Averages>Exercise 2>Q 8

Polly wants to investigate the heights of children aged 11, 12 and 13 years. Design a data collection sheet that will allow her to collect data about gender, age and height. Include some class intervals for height.