Masa pietrelor pretioase se masoara in carate. 1 carat = 0,2 g. Un geolog a gasit doua pietre pretioase: prima avea 51 de carate, iar a doua avea masa de 10,1 g. Care dintre pietre este mai grea? Dau coroana!

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Which rectangle if translated 6 units right and 16 units down and the rotated 90° clockwise about the point (4, -11) will result in rectangle e?

Why is causation so much more difficult to prove than correlation?