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to learn the income of the people who eat Smackers, General Mills would use? a) population...

to learn the income of the people who eat Smackers, General Mills would use? a) population or  neither of the choices or both of these choices or a sample

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We will use sample to know the income of people who eat smackers,as it is not possible to know about all of the population.

So,correct option will be sample.

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