In a sample of discharge of suspended solids from a

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In a sample of discharge of suspended solids from a phosphate mine, it was noted that the mean daily discharge was 27 mg/L and variance was 196. Assuming that the daily discharge is approximately normal, in what proportion of days will the daily discharge be (i) less than 13 mg/L and (ii) at least 55mg/L?

Reference no: EM13639544

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