Reading data and descriptive statistics

Bar charts

Types of exercises: reading a bar chart, bar height on a chart.

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

Solved: 0 of 10

1

Problem

On a bar chart the tallest bar, for 400 mm of rain, is 8 squares tall. How many squares tall will the bar for 100 mm of rain be?

2

Read the bar chart

Seventh-grade pupils were asked about their favourite subject. Each of them chose one answer. The bar chart shows the results of the survey. How many pupils took part in the survey?

Bar chart. Vertical axis: number of pupils, scale from zero, every second line labelled.04812number of pupilsmathshistorybiologygeography
3

Problem

On a bar chart the tallest bar, for 110 people, is 11 squares tall. How many squares tall will the bar for 40 people be?

4

Read the bar chart

Pupils at a school were asked how they usually get to school. Each of them chose one answer. The bar chart shows the results of the survey. What percentage of the pupils surveyed chose "bus"?

Bar chart. Vertical axis: number of pupils, scale from zero, every second line labelled.04812number of pupilsbusbikecartram
5

Problem

We are drawing a bar chart. One square of height stands for 2 mm of rain. How many squares tall will the bar for 12 mm of rain be?

6

Read the bar chart

Seventh-grade pupils were asked about their favourite subject. Each of them chose one answer. The bar chart shows the results of the survey. How many more pupils chose "chemistry" than "geography"?

Bar chart. Vertical axis: number of pupils, scale from zero, every second line labelled.0481216number of pupilshistorygeographyEnglishchemistry
7

Problem

We are drawing a bar chart. One square of height stands for 25 people. How many squares tall will the bar for 125 people be?

8

Read the bar chart

Seventh-grade pupils were asked about their favourite subject. Each of them chose one answer. The bar chart shows the results of the survey. What percentage of the pupils surveyed chose "biology"?

Bar chart. Vertical axis: number of pupils, scale from zero, every line labelled.02468number of pupilsmathshistorybiologychemistry
9

Problem

We are drawing a bar chart. One square of height stands for 50 books. How many squares tall will the bar for 200 books be?

10

Read the bar chart

Eighth-grade pupils were asked about their favourite sport. Each of them chose one answer. The bar chart shows the results of the survey. How many pupils took part in the survey?

Bar chart. Vertical axis: number of pupils, scale from zero, every second line labelled.04812number of pupilsfootballvolleyballtennishandball

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Bar charts - exercises with solutions (Reading data and descriptive statistics) | PhiBoard