If p≠0 and q≠0 are the roots of the equation x^2+px+q=0, then what is p^2+q^2 equal to?

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…

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