It is known that 10% of the items produced by a machine are defective. A random sample of 100 items is selected and checked for defects.

It is known that 10% of the items produced by a machine are defective. A random sample of 100 items is selected and checked for defects.

What is the mean, standard deviation, and shape of the sampling distribution of the sample proportion for this study?

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Regards,

Cathy, CS.