PLEASE HELP Which histogram(s) shows a symmetric distribution?

W.
X.

Y.
Z.
A.
W and X
B.
W
C.
X and Z
D.
W and Y

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.