In an industrialsetting, process steam has been found to be normally distributed with an average value of 28,000 pounds per hour. There isa(n) 60% probability that steam flow lies between 22,000 and 34,000 pounds per hour. What is the variance of the steamflow?

In an industrial setting, process steam has been found to be normally distributed with an average value of 28,000 pounds per hour. There is a(n) 60% probability that steam flow lies between 22,000 and 34,000 pounds per hour. What is the variance of the steam flow? Click the icon to view the normal probability table. The variance of the steam flow is million (Ibs/hr). (Round to two decimal places.)