Statistical Diagrams (Cambridge (CIE) IGCSE Maths: Extended)

The number of people swimming in a pool is recorded each day for 12 days.

Complete the stem-and-leaf diagram.

Find the median number of swimmers.

120 students choose what they want to do when they leave school. Their choices are shown in the table.

Complete the pie chart to show this information. Label each sector clearly.

Here are the times, in minutes, that 20 children took to walk to school.

13    21    19    27    31       5   23    29    18    25

34    15    28    23    22    40    16    19    32      9

Draw an ordered stem and leaf diagram for these times.

Here are the heights, in cm, of 18 children.

98      90      84       102      115      91

88      91      108     110     97      93

90      89      103      95      92      106

Show this information in an ordered stem and leaf diagram.

Here are the heights, in mm, of 20 plants.

53    44    48    56    48    64    51    33    41    44

31    52    55    63    60    56    47    61    37    56

Draw an ordered stem and leaf diagram for these heights.

Here are the speeds, in miles per hour, of 16 cars.

31   52   43   49   36   35   33   29

54   43   44          46    42    39   55   48

Draw an ordered stem and leaf diagram for these speeds.

Here are the lengths, in cm, of 15 tables.

28      51      42      23      63

38      44      29      32      37

61      35      39      41      25

Draw an ordered stem and leaf diagram for these lengths.

The table gives some information about the birds Paula sees in her garden one day.

Complete the accurate pie chart.

Here are the heights in centimetres of 20 men.

Show this information in an ordered stem and leaf diagram.

Work out the percentage of these men with a height greater than 184 cm.

Chloe recorded the test marks of 20 students.

Show this information in an ordered stem and leaf diagram.

One of these students is going to be chosen at random.

Find the probability that this student has a test mark less than 28

The pie chart shows information about voters in an election.

3360 more women voted than men. Work out the total number of voters.

The pie charts give information about the ages, in years, of people living in two towns, Adley and Bridford.

The ratio of the number of people living in Adley to the number of people living in Bridford is given by the ratio of the areas of the pie charts.

What proportion of the total number of people living in these two towns live in Adley and are aged 0 -19?
Give your answer correct to 3 significant figures.