Question: Rate data often follow a lognormal distribution. Average power usage (dB per hour) for a particular company is studied and is known to have a

Rate data often follow a lognormal distribution.

Average power usage (dB per hour) for a particular company is studied and is known to have a lognormal distribution with parameters μ = 4 and σ = 2. What is the probability that the company uses more than 270 dB during any particular hour?

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