Column graphs help to paint a picture of the data we are looking at, making it visually very simple to compare information. The way we create a column graph doesn't really change, but what we include in it may change, so once you learn how to create one, you can change it slightly for the next time.

Worked examples

Question 1

$John$ had $7$7 $blue$ marbles, $4$4 $black$ marbles, $8$8 $yellow$ marbles, $13$13 $white$ marbles, and $6$6 $red$ marbles. Use this information to complete the column graph.

Question 2

The table shows the number of people who visited Disneyland between $2008$ and $2012$ .

Year	Number of people (in hundred thousands)
$2008$	$158$158
$2009$	$155$155
$2010$	$155$155
$2011$	$157$157
$2012$	$160$160

Use the table to complete the chart.

Question 3

Miss $Yen$ recorded her students' favourite pets in the column graph below.

A bar graph titled "Student's favorite pets" displays the preferences of an unspecified number of students for five types of pets: dogs, hamsters, birds, cats, and fish. The vertical axis is labeled "Number of students" and has a scale that goes from 0 to 15 in increments of 5. Each category of pet has a corresponding bar that indicates the number of students who favor that pet. The bar for

Hamster

shows a count of

6

. The bar for

Dog

shows a count of

7

. The bar for

Cat

shows a count of

4

. The bar for

Fish

shows a count of

8

. The bar for

Bird

shows a count of

11

Which type of pet is most popular?
$Fish$
A
$Bird$
B
$Hamster$
C
$Cat$
D
$Dog$
E
Which pet is least popular?
$Bird$
A
$Cat$
B
$Fish$
C
$Dog$
D
$Hamster$
E
How many students picked a $Fish$ as their favourite pet?
How many students were surveyed in total?

Outcomes

S2-1

Conduct investigations using the statistical enquiry cycle:– posing and answering questions; – gathering, sorting, and displaying category and whole-number data; – communicating findings based on the data.

Create and Interpret Column Graphs II

Worked examples

Question 1

Question 2

Question 3

Outcomes

S2-1

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