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a) -3°C
b) -4°C
c) 1100 and 1700

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(b) I think bar chart is more suitable because it's more easier to read and understand.

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a) the distribution is from 20 to 30
b) the clusters is around 22
c) the extreme value is 30

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A. Science test - 45 students
Mathematics test - 75 students
B. In Diagram (a) , most of the middle of the histogram. It shows that most students obtained average marks in the Science test.
In Diagram (b) , most of the taller bars lie on the right-hand side of the histogram. It shows that most students obtained higher marks in the Mathematics test
C. Student obtained more higher marks in mathematics test than in the Science test

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9/9/2021

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2/9/2021

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29/8/2021

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26/8/2021

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10.3 Relationship between perimeter and area

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22/8/2021

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19/8/2021

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15/8/2021

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12/8/2021

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8/8/2021

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5/8/2021

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1/8/2021