Information in Tables, Charts & Diagrams (WJEC GCSE Maths & Numeracy (Double Award)): Revision Note
Exam code: 3320
Infographics, Tables & Charts
How might information be presented?
Information, data and numbers may be presented in a variety of formats depending on its purpose
E.g. Data in a scientific paper will be presented very differently to data presented in a social media advertisement, or on a train timetable
You should be able to interpret and use mathematical information in various visual forms
E.g. From a table, pictogram, or bar chart
What is an infographic?
An infographic is a visual representation of information or data
Images are used to help make it faster and easier to interpret
Below is an example of an infographic about water usage
It displays a lot of data insights in a more appealing and visual format than a spreadsheet or lots of tables
This can make proportions or trends easier to see at a glance
Infographics may combine several types of charts and statistics
The example above includes:
Percentages
Pictograms
Bar charts
Ordered numbers
Coloured maps
Worked Example
Consider the infographic below.
In a particular college, 12 females apply to STEM subjects at the University of Bath.
Using the information in the infographic, how many of these 12 females would you expect to be accepted onto their chosen subject at the University of Bath?
Answer:
Use the infographic to identify the relevant piece of data
Box number 7 shows the acceptance rate for females at the University of Bath for STEM subjects is 19%
Find 19% of 12
0.19 × 12 = 2.28
Round to the nearest integer, as you are looking for a number of people
Expected number = 2
Plans, Schedules & Timetables
What do I need to know about plans, schedules, timetables and calendars?
You must be able to interpret and use information related to times and dates contained in schedules, tables, timetables and calendars
A common example is a bus or train timetable, or tide times
How do I use bus and train timetables?
Bus and train timetables tend to use the 24-hour clock system
Each column represents a different bus or train
Times are listed as four digits without the colon ':'
The time in each cell usually indicates the departure time (when the bus/train leaves that stop/station)
The last location on the list usually shows the arrival time
How do I create a plan or schedule?
You need to be able to create a plan or schedule using given information
This may involve timetables like the one above, or written information about dates and times
You may need to take into account:
When events must happen by (deadlines)
How long events last (duration)
The order that events need to occur in
For example,
Getting a bus to a location, completing some shopping there, then getting a train to your friend's house
Organising a renovation project involving a builder, plumber and painter who only have availability on certain dates and must be scheduled in order
Worked Example
The table below shows part of a bus timetable.
Coronation Street | 0750 | 0800 | 0816 | 0832 | 0845 |
|---|---|---|---|---|---|
Albert Square | 0818 | 0830 | 0849 | 0905 | 0915 |
Ramsey Street | 0825 | 0840 | 0903 | 0920 | 0928 |
Emmerdale Village | 0834 | 0852 | 0918 | 0932 | 0940 |
Gareth plans to catch the 0750 bus from Coronation Street to the post office in Albert Square. He estimates that waiting in the queue and posting his parcel at the post office will take 15 minutes. He then plans to ride the bus to visit his friend Sam who lives in Emmerdale Village.
(a) What is the earliest time that Gareth can arrive in Emmerdale Village?
Answer:
Gareth takes the 0750 bus from Coronation Street which arrives in Albert Square at 0818
He then spends 15 minutes at the post office
0818 + 15 mins = 0833
This means he cannot use the 0830 bus from Albert Square, and must wait for the 0849 bus
Gareth then takes the 0849 bus from Albert Square to Emmerdale Village
This bus arrives at Emmerdale Village at 0918
0918 is the earliest time he can arrive in Emmerdale Village
Worked Example
Ms. Davies, the drama club director, needs to schedule three important people to rehearse simultaneously for 3 consecutive days in May for the upcoming school play.
The three people's availabilities for May are:
Lead Actor: Available only between May 1st and May 12th, inclusive.
School Hall: Available only between May 8th and May 19th, inclusive.
Stage Manager: Unavailable every Friday, Saturday, and Sunday.
Determine the suitable 3-day period(s) in May when Ms. Davies can schedule all three people to rehearse together.
Use the calendar below to help you.
May | ||||||
|---|---|---|---|---|---|---|
Mon | Tue | Wed | Thu | Fri | Sat | Sun |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
8 | 9 | 10 | 11 | 12 | 13 | 14 |
15 | 16 | 17 | 18 | 19 | 20 | 21 |
22 | 23 | 24 | 25 | 26 | 27 | 28 |
29 | 30 | 31 | ||||
Answer:
Consider which dates the Lead Actor and School Hall are both available
Lead Actor: Between 1st and 12th
Hall: between 8th and 19th
Therefore must be between 8th and 12th
Consider the limitations on the Stage Manager, who is not available on Fridays, Saturdays, and Sundays
Using the calendar, write down the days which are not Friday, Saturday, Sunday, between the 8th and 12th
Mon 8th May, Tue 9th May, Wed 10th May, Thu 11th May
It needs to be 3 consecutive days, so there are two options
Monday 8th May, Tuesday 9th May, Wednesday 10th May
or Tuesday 9th May, Wednesday 10th May, Thursday 11th May
Unlock more, it's free!
Did this page help you?
