Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 8, 11, 9, 5, 12, 9, 10, 8, and 11. Find the standard deviation of the sampling distribution for the p-chart.

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Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. The number of returns were 10, 8, 11, 9, 5, 12, 9, 10, 8, and 11. Find the standard deviation of the sampling distribution for the p-chart. 0.0465 0.0146 0.0930 There is not enough information to answer the question. 0.0290