The statistics of phytotoxic air pollutants

Reference no: EM131076490

The article "The Statistics of Phytotoxic Air Pollutants" (J. of Royal Stat. Soc., 1989: 183-198) suggests the lognormal distribution as a model for SO₂ concentration above a certain forest. Suppose the parameter values are µ = 1.9 and σ = .9.

a. What are the mean value and standard deviation of concentration?

b. What is the probability that concentration is at most 10? Between 5 and 10?

Reference no: EM131076490

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