The average rate of water usage (thousands of gallons per hour) by a certain community is known

Question:

The average rate of water usage (thousands of gallons per hour) by a certain community is known to involve the lognormal distribution with parameters p = 5 and a = 2. It is important for planning purposes to get a sense of periods of high usage. What is the probability that, for any given hour, 50,000 gallons of water are used?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...