Elements of descriptive statistics

Reading data

Types of exercises: total from a table, difference between two values, the largest value in a table, how the data change, the largest and the smallest value, reading a bar chart, comparing data on a bar chart, reading a line graph.

Exercises are drawn at random from a large bank - every click gives a different set.

Solved: 0 of 10

1

How many more people visited the pool on Saturday than on Sunday?

The bar chart shows how many people visited a swimming pool on each day of one week. Each bar ends on a grid line or exactly halfway between two lines.

Bar chart. Vertical axis: number of people, scale from zero, every line labelled.020406080100120140160180200number of peopleMonTueWedThuFriSatSun
2

How many tickets were sold altogether on all these days?

Monday: 9, Tuesday: 15, Wednesday: 6, Thursday: 7

3

Who scored the most points?

Kate: 17, Jacob: 18, Ola: 24, Peter: 10, Sophie: 14

4

How tall was the plant after 5 weeks?

Pupils planted a bean and measured the height of the plant every week. The line graph shows the results.

Line graph. Vertical axis: height (cm), from zero, every line labelled. Horizontal axis: time (weeks).024681012141618height (cm)0123456time (weeks)
5

How many millimetres of rain fell in April?

The bar chart shows how many millimetres of rain fell in a certain town in each month from April to September.

Bar chart. Vertical axis: rainfall (mm), scale from zero, every line labelled.01020304050rainfall (mm)AprilMayJuneJulyAugustSeptember
6

How many more tickets were sold on the best day than on the worst day?

Monday: 35, Tuesday: 29, Wednesday: 13, Thursday: 22, Friday: 27, Saturday: 19, Sunday: 8

7

Which phrase describes how the depth of the snow changed from Wednesday to Friday?

Monday: 46 cm, Tuesday: 38 cm, Wednesday: 40 cm, Thursday: 40 cm, Friday: 40 cm, Saturday: 45 cm, Sunday: 41 cm

8

How many more tickets were sold on Wednesday than on Monday?

Monday: 34, Tuesday: 29, Wednesday: 37, Thursday: 4

9

How many more pupils in class 4a than in class 4b chose apples?

The pupils of classes 4a and 4b chose their favourite fruit. The bar chart shows the results of this survey in both classes. Each bar ends on a grid line or exactly halfway between two lines.

Bar chart. Vertical axis: number of pupils, scale from zero, every line labelled.0246810number of pupilsapplesbananaspearsplumsgrapesclass 4aclass 4b
10

How many points did all these pupils score altogether?

Kate: 30, Jacob: 20, Ola: 25, Peter: 8, Sophie: 8, Adam: 16

This address is one particular set - everyone who opens it gets exactly the same exercises. Copy the link from the address bar and send it to the class. You can generate a new set at the top of the page.

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Reading data - exercises with solutions (Elements of descriptive statistics) | PhiBoard