Mathematics, 21.10.2020 22:01 aroman4511

A researcher wants to develop a product for families who have small children. He needs to determine if there is a nationwide interest in a toy that will help children describe their emotions. He asks only a sample of the population to complete his survey. What should be true of the sample so that the results of the survey can be used to predict the results of surveying the population?

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A researcher wants to develop a product for families who have small children. He needs to determine...

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