Work these exercises. (See Examples 2, 3, 10, and 11.)
Postal Rates Whenever postage rates change, some newspaper publishes a graph like this one, which shows the price of a first-class stamp from 2006-2016.
Let f be the function whose rule is
Explain why the graph in the figure is not the graph of the function. What must be done to the figure to make it an accurate graph of the functionf?
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- Throughout, A, B, (An, n≥ 1), and (Bn, n≥ 1) are subsets of 2. 1. Show that AAB (ANB) U (BA) = (AUB) (AB), Α' Δ Β = Α Δ Β, {A₁ U A2} A {B₁ U B2) C (A1 A B₁}U{A2 A B2).arrow_forward16. Show that, if X and Y are independent random variables, such that E|X|< ∞, and B is an arbitrary Borel set, then EXI{Y B} = EX P(YE B).arrow_forwardPls help me with accurate answer plsarrow_forward
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- 8. Show that, if {Xn, n ≥ 1) are independent random variables, then sup X A) < ∞ for some A.arrow_forward8- 6. Show that, for any random variable, X, and a > 0, 8 心 P(xarrow_forward15. This problem extends Problem 20.6. Let X, Y be random variables with finite mean. Show that 00 (P(X ≤ x ≤ Y) - P(X ≤ x ≤ X))dx = E Y — E X.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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