Plenary-data handling

What does a pictogram use to show data?

• Numbers

• Pictures or symbols

• Letters

• Lines

Which chart is best for showing how something changes over time?

• Bar chart

• Pictogram

• Line graph

• Tally chart

In a tally chart, how many marks are used before crossing them out as a group?

• 3

• 4

• 5

• 6

What is the purpose of a frequency table?

• To count how often something happens

• To draw pictures of data

• To compare two different surveys

• To sort numbers in order

If a bar in a bar chart is taller than another, what does it mean?

• The category has fewer votes

• The category has more votes

• The data is incorrect

• It is just decoration

A bar chart can only be drawn horizontally.

• True

• False

A pictogram must always use the same symbol for all data.

• True

• False

A tally chart is a type of graph.

• True

• False

Line graphs are useful for showing trends over time.

• True

• False

In a frequency table, the highest number shows the most popular choice.

• True

• False