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Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about constructing and then reading information from a graph.

In the first week of January, Graham worked out how much he earned by delivering papers after school.

He wrote the amounts into the table below.

 

Day of week Mon Tue Wed Thu Fri Sat Sun
Amount earned $3 $5 $5 $4 $5 $7 $6

a)
 
Draw a bar graph, showing the information.
 
 
 
b)
On what day does he earn the least money, and on what day does he earn the most money?
 
Least: _______________          Most: _______________
 
c)
What is the average (mean) amount that he earns? $ __________
 
d)
Graham is saving up for a mountain bike costing $700.
 
At this rate, how many weeks will he need to work to earn the money? __________
Task administration: 
This task is completed with pencil and paper only.
Level:
4
Curriculum info: 
Maths, Statistics, Statistical investigations
Keywords: 
bar graphs, graph construction, graph interpretation, mean, mode
Description of task: 
Students complete a bar graph of a paper boy's earnings from data in a table and answer questions interpreting the data, finding the least, most, average and forecasting.
Curriculum Links: 
This resource can be used to help to identify students' ability to construct a bar chart and identify measures of centrality (mean, median, mode).
Learning Progression Frameworks
This resource can provide evidence of learning associated with
Statistical investigations, set 5
within the Mathematics Learning Progressions Frameworks.
Read more about the Learning Progressions Frameworks.
Answers/responses: 
  
Y6 (10/1996)
Y7 (10/1996)
a)
Graph drawn correctly (see below).
 very easy very easy
b) Monday, Saturday very easy very easy
c) $5 per day. easy moderate
d) 20 weeks [700/35] moderate moderate