Suppose a certain drug causes kidney problems in 10% of patients, and this drug is to be tested on 55 patients. Find the standard deviation for the number of patients who will experience kidney problems. 2.2249 5.5 5.0 2.345 The population standard deviation is the Square of the population variance positive square root of the population variance same as the expected value square root of the sum of the deviations from the mean

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