Statistics

Lesson

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.

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.

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.

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

Which type of pet is most popular?

Fish

ABird

BHamster

CCat

DDog

EWhich pet is least popular?

Bird

ACat

BFish

CDog

DHamster

EHow many students picked a Fish as their favourite pet?

How many students were surveyed in total?