Very confused about what I'm supposed to do here. No idea about part b

2) X1, X2, . . . , Xn_1, and Xn are iid random variables having pdf i_' 9/2<:1: f a elsewhere. where b e the density has triangle shape and is symmetric about making sketch of pdf might help you grasp better understanding situation. give method moments estimator b. for case n="2," x1="10.0" x2="4.5," maximum likelihood estimate can be determined that large enough values both observations will belong to lower half support xi some smaller one observation x1- other upper xi. no in parameter space these>