(a)

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Early last winter,at cold lake and albert:

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The daily maximum temperature was \"\".

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The minimum temperature was \"\".

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Find the difference between maximum and minimum temperature.

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\"\".

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The difference between these temperature is \"\".

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(b)

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Early last winter,at cold lake and albert:

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The daily maximum temperature was \"\".

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The minimum temperature was \"\".

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Find the average temperature of at cold lake and albert.

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\"\"

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The average temperature of at cold lake and albert is \"\".