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ARC ELASTICITY: The average elasticity for discrete changes in two variables, A and B. The distinguishing characteristic of arc elasticity is that percentage changes are calculated based on the average of the initial and ending values of each variable, rather than only initial values. Arc elasticity is generally calculated using the midpoint formula. Arc elasticity should be compared with point elasticity. For infinitesimally small changes in variables A and B, arc elasticity is the same as point elasticity.

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VERIFICATION

The hypothesis-testing step of the scientific method in which the hypothesized implication of a theory is compared against real world events and data. This verification can provide support or refutation of the hypothesis. Enough support enables a hypothesis to become a principle. Refutation calls into question the theory implying the hypothesis. In either event, further analysis is indicated.

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Today, you are likely to spend a great deal of time visiting every yard sale in a 30-mile radius seeking to buy either a decorative windchime with plastic or a flower arrangement for that special day for your mother. Be on the lookout for neighborhood pets, especially belligerent parrots.
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Paper money used by the Commonwealth of Massachusetts prior to the U.S. Revolutionary War, which was issued against the dictates of Britain, was designed by patriot and silversmith, Paul Revere.
"The shifts of fortune test the reliability of friends. "

-- Marcus Tullius Cicero, Roman statesman

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