Joke Collection Website - Talk about mood - Probability problem, let's talk about the reason why each item is wrong and right first. The book says that it is done by using the properties of distribution function.
Probability problem, let's talk about the reason why each item is wrong and right first. The book says that it is done by using the properties of distribution function.
For A, the total integral of the distribution function is 1, while the total integral of F 1(x) and F2(x) is 1.
B Yes, for the same reason as above, x=+∞.
C right, F(x)=∫x? F(x), the formula multiplied by x and then integrated, is the formula A.
D is wrong. ∫ x f 1 (x) F2 (x) is not necessarily equal to 1.
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