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Df= {-3,-1,1,3,5}
-3⇒1/2(1-(-3) = 1/2 (4) =2
-1⇒1/2 (1-(-1) = 1/2 (2) = 1
1⇒ 1/2 (1-1)= 1/2 (0) = 0
3⇒ 1/2 (1-3)= 1/2 (-2)= -1
5⇒1/2 (1-5)= 1/2 (-4) = -2
Range= {-2,-1,0,1,2}