Data is represented in many different forms. Using bar charts, pie charts and frequency diagrams can make information easier to digest.

The chart below shows how many brothers or sisters (siblings) a group of school children have. How many girls have one sibling?

7

2

5

The table below shows 45 people's favourite type of film. If the table was shown as a pie chart, what angle would be needed to show 'Comedy'?

81˚

104˚

What is the correlation of this scatter diagram?

Positive

Negative

No correlation

From the scatter graph below, can you estimate how much revenue would be earned from ice cream sales if the temperature was 20°C?

Cannot be found out

£12.50

£80

The cumulative frequency graph shows the height of 60 young coniferous trees in a park. What is the approximate median height of the trees?

0.61 metres

0.68 metres

30 metres

The box plot below shows the mass in grams of pick and mix sweets at a cinema. What is the median mass ?

55 g

73 g

95 g

Where is the range found on a box plot?

The total length of the box plot

The central length of the box on the box plot

Range cannot be seen on a box plot

The box plot below shows the mass in grams of pick and mix sweets at a cinema. What proportion of the bags weigh more than 95 grams?

Impossible to tell

50%

25%

The lengths, l cm, of 20 leaves are found to be in the interval 5 l 10. If drawing a histogram to show the length of leaves, what will be the height of the bar drawn at 5 l 10 cm?

20

0.25

4

This histogram shows the ages of some children. How many children are there?

25

6

18