The American Mineralogist (Oct. 2009) published a study of the evolution of uranium minerals in the Earth's

Question:

The American Mineralogist (Oct. 2009) published a study of the evolution of uranium minerals in the Earth's crust. Researchers estimate that the trace amount of uranium x in reservoirs follows a uniform distribution ranging between 1 and 3 parts per million.

a. Find E(x) and interpret its value.

b. Compute P (2 < x < 2.5).

c. Compute P (x < 1.75).

Distribution
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