Travel to Lake Baikal, Siberia

Permeability Test of Soil by Falling, Constant Head Permeameter.

SOLVED: Water permeability of concrete can be measured by letting waterflow across the surface and determining the amount lost (in inchesper hour). Suppose that the permeabilityindex x for a randomly selected concretespecimen of a particular type is normally distributed with meanvalue 1000 and standard deviation 150.(a) How likely is it that a single randomly selected specimenwill have a permeability index between 850 and 1300? (Round youranswer to four decimal places.)P(850 < x < 1300)= Water

How is permeability of concrete measured? - TimesMojo