Question 1193883
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For gamma-distribution use free of charge online calculator


https://homepage.divms.uiowa.edu/~mbognar/applets/gamma.html


specially intended for this purpose.



Your parameters are    {{{alpha}}} = 5    and    {{{beta}}} = 2,

x = 1    (which represents one million of gallons).



The calculator gives  &nbsp;&nbsp;P(x < 1) = 0.00017.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>