This Math quiz is called 'Data Handling - Frequency Diagrams' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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Pie and bar charts are two examples of frequency diagrams. Collected data is of no use unless it can tell us something about the situation surveyed. To see patterns or connections in information we can display it in a variety of ways.
This Math quiz deals with diagrams used to illustrate frequency data.
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The clue is in the word - picto = picture
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4 x 20 = 80
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31⁄2 x 20 = 70
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The clue is in the word - daily
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The range is the difference between the highest and lowest values. When negative numbers are involved, it's best to look at the number line
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This gives a sensible maximum of 8 bars
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The symbol ¡Ü means 'less than or equal to'
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25 ¡Â 5 = 5
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Frequency polygons can be used to compare patterns in linked bar charts
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