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Mathematics
20.03.2021 03:39
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LEARN On Saturday, Mr. Johnson does chores. He spends of the time mowing the grass

LEARN On Saturday, Mr. Johnson does chores. He spends of the time mowing the grass and of the remaining time washing the car. He spends the rest of the time, 30 minutes, pulling weeds. How much total time does he spend on all three chores?
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cvannesacanto
cvannesacanto
4,4(95 marks)

The newspaper publisher should check a random sample of the newspapers to avoid a biased sample. The sample needs to be large enough to be representative of the population.

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