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Normal distribution: Finding a mean or standard deviation Suppose that the times taken for germination for cauliflower seeds are normally distributed with a mean of 6.9 days. Suppose also that exactly 80% of the cauliflower seeds germinate in 5.9 days or more. Find the standard deviation of times taken for germination for cauliflower seeds. Carry your intermediate computations to at least four decimal places. Round your answer to at least two decimal places. ll days X ? Explanation Check