Question bank › GCSE Maths › Statistics

Charts: bar, pie, stem-and-leaf, frequency polygons

Answer on paper first, then reveal the mark scheme one mark at a time.

1Grade 1–3FoundationNon-calculator4 marks

The bar chart shows the favourite fruit of some students.

(a) How many students chose banana? [1]

(b) How many students are there altogether? [1]

(c) What fraction of the students chose apple? Give your answer in its simplest form. [2]

0246810Favourite fruitNumber of studentsAppleBananaOrangeGrapePear
2Grade 1–3FoundationCalculator3 marks

60 people were asked how they travel to work. The table shows the results.

TransportFrequencyAngle
Car21
Bus15
Walk18
Cycle6

Leo wants to draw a pie chart for this information.

Work out the angle he should use for each sector. [3]

3Grade 4–5Non-calculator4 marks

The pie chart shows how 72 students travel to school.

(a) How many students walk to school? [2]

(b) How many more students travel by bus than cycle? [2]

Walk130°Bus100°Car80°Cycle50°
4Grade 1–3FoundationNon-calculator5 marks

The stem-and-leaf diagram shows the times, in minutes, that 15 people spent in a shop.

12 5 8
21 3 3 7 9
30 4 5 8
41 6
52

Key: 2 | 3 represents 23 minutes

(a) Write down the mode. [1]

(b) Find the median. [1]

(c) Work out the range. [1]

(d) What fraction of the people spent more than 35 minutes in the shop? [2]

5Grade 1–3FoundationNon-calculator4 marks

Here are the marks scored by 12 students in a quiz.

34   27   45   31   52   38   27   49   41   36   55   29

(a) Draw an ordered stem-and-leaf diagram for this information. [3]

(b) Work out the median mark. [1]

6Grade 4–5Calculator6 marks

The frequency polygon shows information about the masses, in grams, of 40 apples. The masses were grouped into the classes $100 \lt m \le 120$, $120 \lt m \le 140$, $140 \lt m \le 160$, $160 \lt m \le 180$ and $180 \lt m \le 200$.

(a) Write down the modal class. [1]

(b) How many apples have a mass greater than 160 g? [1]

(c) Work out an estimate for the mean mass of the apples. [4]

1001201401601802000246810121416Mass (grams)Frequency
7Grade 4–5Non-calculator3 marks

The table shows information about the times, $t$ seconds, that 23 students took to solve a puzzle.

Time ($t$ seconds)Frequency
$0 \lt t \le 10$4
$10 \lt t \le 20$9
$20 \lt t \le 30$7
$30 \lt t \le 40$3

Kieran draws the frequency polygon shown for this information.

(a) Describe the mistake Kieran has made. [1]

(b) Write down the coordinates of the points Kieran should have plotted. [2]

0102030400246810Time (t seconds)Frequency
8Grade 4–5Calculator3 marks

The pie charts show the favourite sport of the students at two schools.

School A has 300 students. School B has 120 students.

Sasha says, “More students chose football at School B than at School A, because the football sector is bigger.”

Is Sasha correct? You must show your working. [3]

Football60°Other300°Football120°Other240°School A (300 students)School B (120 students)
9Grade 1–3FoundationNon-calculator5 marks

The pictogram shows the number of books borrowed from a library on each of five days last week. The row for Thursday has not been completed.

(a) How many books were borrowed on Tuesday? [1]

(b) How many books were borrowed on Wednesday? [1]

(c) 18 books were borrowed on Thursday. Complete the pictogram. [1]

(d) Work out the total number of books borrowed from Monday to Friday. [2]

MondayTuesdayWednesdayThursdayFridayKey:represents 8 books
10Grade 4–5Non-calculator5 marks

The vertical line chart shows the number of goals a hockey team scored in each of its 20 matches last season.

(a) Write down the mode. [1]

(b) Work out the range. [1]

(c) Work out the mean number of goals scored per match. [3]

01234567012345Number of goals scored in a matchFrequency
11Grade 4–5Non-calculator4 marks

A company manager drew this bar chart to show the company’s profit in three years.

(a) Give two different reasons why the bar chart could be misleading. [2]

(b) The manager says,

“Our profit in 2025 was three times our profit in 2023.”

Use the bar chart to show that the manager is wrong. [2]

4042444648505254202320242025YearProfit (£ thousands)
12Grade 6–7HigherNon-calculator6 marks

Two groups of 15 students each completed the same puzzle. The back-to-back stem-and-leaf diagram shows the times, in seconds, that they took.

Group AGroup B
18
8 5 221 4 6 9
8 7 6 4 3 133 8
7 5 4 241 3 6 8
3 152 5 7
60

Key: 3 | 4 | 1 means 43 seconds for Group A and 41 seconds for Group B

(a) For Group A, find (i) the median time and (ii) the interquartile range. [3]

(b) For Group B, the median is 41 seconds and the interquartile range is 26 seconds.

Compare the times taken by the two groups. [2]

(c) Explain why a stem-and-leaf diagram is more useful than a grouped frequency table for finding the median. [1]

13Grade 6–7HigherNon-calculator7 marks

The members of a club each voted for one place to visit on a trip. The pie chart shows information about the votes.

  • 54 members voted for the Zoo.
  • The angle for Museum is twice the angle for Beach.
  • The angle for Theme park is 12° more than the angle for Beach.

(a) Work out how many members voted for the Theme park. [5]

(b) Later, 20 more people join the club and all of them vote for the Theme park. A new pie chart is drawn for all the votes.

Work out the angle of the Theme park sector in the new pie chart. [2]

BeachMuseumTheme parkZoo108°Not drawn accurately
14Grade 4–5Calculator5 marks

A gardener grew 50 seedlings with fertiliser P and 50 seedlings with fertiliser Q. The heights, $h$ cm, of the seedlings were grouped into the classes $0 \lt h \le 4$, $4 \lt h \le 8$, $8 \lt h \le 12$, $12 \lt h \le 16$ and $16 \lt h \le 20$.

The frequency polygons show the results.

(a) How many seedlings grown with fertiliser P had a height greater than 12 cm? [1]

(b) Find the class interval that contains the median height for fertiliser Q. [1]

(c) Ravi says, “The tallest seedling grown with fertiliser Q was 18 cm tall.”

Explain why Ravi could be wrong. [1]

(d) Which fertiliser produced taller seedlings? Give a reason for your answer. [2]

02468101214161820048121620Height, h (cm)FrequencyFertiliser PFertiliser Q
15Grade 4–5Calculator5 marks

The time-series graph shows the number of umbrellas a shop sold in each quarter (Q1 to Q4) of two years.

(a) Write down the number of umbrellas sold in Q3 of Year 2. [1]

(b) Describe the pattern in umbrella sales within each year. [1]

(c) Describe the overall trend in sales from Year 1 to Year 2. [1]

(d) Work out the percentage increase in the total number of umbrellas sold from Year 1 to Year 2. [2]

020406080100120140160180200Q1Q2Q3Q4Q1Q2Q3Q4Year 1Year 2Number of umbrellas sold

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