Mathematics, 30.09.2019 17:20 kluke7170

Adifferent species of cockroach has weights that are approximately normally distributed with a mean of 50 grams. after measuring the weights of many of these cockroaches, a lab assistant reports that 14% of the cockroaches weigh more than 55 grams. based on this report, what is the approximate standard deviation of weight for this species of cockroaches?

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