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2 years ago

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Pls help with this!!

1 answer:

ANEK [815]2 years ago

7 0

A)
Let X be the food expenditure of a family.
Let the population mean of an expenditure of a family be.
Let the population standard deviation of an expenditure of a family be.
The proportion families spend more than $30 but less than $490 per month on food is,

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