If the data represented by the graph is normally distributed, what are the endpoints of the middle 68% of the d --1.8 0.4 7 A. -infinity and +infinity DB. -1.8 and 11.4 c. 0.4 and 9.2 D. 2.6 and 7​

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}