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sara_87
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Homework Statement
A library has been given 3 books. these books carry volume numbers X1, X2 and X3 where
X1<X2<X3. But it is not known how many volumes there are altogether in the set. Suppose there are n volumes, numbered 1,2,3,...n in the set, and the 3 volumes in the library are regarded as a random sample from this total of n. Two estimators of n are proposed:
Y=2(3X3-X1)
Z=2X2-1
Consider the case where n is 3. show that the value of Y must be 4 and that the value of Z must be 3.
Homework Equations
The Attempt at a Solution
I know i have to find X1 and X2 and X3 but i don't know how to start.
Thank you!