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Topic: Internet access during exams
Replies: 17   Last Post: Jan 6, 2012 11:00 PM

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Posts: 1
Registered: 1/6/12
Re: Internet access during exams
Posted: Jan 6, 2012 7:07 PM
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On Jan 6, 5:58 pm, glen herrmannsfeldt <> wrote:
> I used to wonder about giving questions in different variables
> than the formula in the book. If students understand the concept,
> then letters shouldn't matter.

Agreed, but on an exam where there is time pressure,
it always seemed a bit unfair to use new notation just
to test whether they understand the concept. "Let x
denote a random variable with density function f_x(X)"
just muddies the waters.

Dilip Sarwate

P.S. Are the roots of the quadratic equation
ax^2 + bx + c = 0
given by 2c/[-b +/- sqrt(b^2 - 4ac)] ?

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