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An Element Found in Another Galaxy Exists as Two Isotopes

question 63

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An element found in another galaxy exists as two isotopes. If 80.0 percent of the atoms have an atomic mass of 80.00 amu and the other 20.0 percent have an atomic mass of 82.00 amu, what is the atomic mass of the element?


Definitions:

Prior Probabilities

Initial probabilities assigned to outcomes or events before new evidence or data is considered.

Bayes' Law

A theorem describing the probability of an event, based on prior knowledge of conditions that might be related to the event.

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The percentage at which interest is paid by a borrower for the use of money they borrow from a lender, or the rate earned on an investment, typically expressed as an annual percentage rate.

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