Q-Q Plots of spine density vs. soma distance for a set of 9 example dendrites. This figure presents the Q-Q plots of spine density vs. distance from soma for 9 (of the 485) example dendrites. We randomly selected 1 dendrite from each DIV and each biological replicate (experiment) to ensure the diversity of the set. The y = x line is marked in red, and the observed Q-Q values are marked as black circles. Visual inspection of these plots show that they follow the line y = x closely enough to assume that the spine locations being CSR was a viable null hypothesis.