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Data Analysis
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Hong Kong
Stage 1 - Stage 3

Sector Graphs

Lesson
Practice

Interactive practice questions

A technology company wishes to see what MP3 players people are using. They took a small sample and found the following:

Apple: $156$156

Sandisk: $19$19

Samsung: $32$32

Other: $74$74

A pie chart is divided into four sectors, each representing a different technology company and each labeled with letters. The colors of the sectors are yellow-green, green, purple, blue and red, arranged in a clockwise manner. The yellow-green sector is labeled "C" and is the largest sector. The red sector is labeled "B" and is the second largest sector. The purple sector is labeled "D" and is the third largest sector. The blue sector is labeled "A" and is the smallest sector.

Which sector represents Samsung?

A

A

B

B

C

C

D

D
Easy
< 1min

Some non-profit organisations were asked how many operations they are running. The results are given below:

Easy
3min

Mr Brown did a survey to find out how students usually spend their spare time. Then he recorded the data in the form of a picture graph.

Use the key to answer the following questions:

Easy
1min

The adjacent circular diagram represents the results of grade 8 class president elections for the year 2010.

Easy
< 1min
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