Question: 4. [-l4 Points] DETAILS DEVORESTAT9 4.5.0765. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An article suggests the lognormal distribution as a model for SO2 concentration

4. [-l4 Points] DETAILS DEVORESTAT9 4.5.0765. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An article suggests the lognormal distribution as a model for SO2 concentration above a certain forest. Suppose the parameter values are pa = 2.1 and a = 0.7. l USE SALT (a) What are the mean value and standard deviation of concentration? (Round your answers to three decimal places.) mean E standard deviation :] (b) What is the probability that concentration is at most 10? Between 5 and 10? (Round your answers to four decimal places.) between 5 and 10 :] You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help?

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