[jasonshen]

I put the "engagement" clicks into excel and looked at the chi-square test to determine the likelihood the data differs significantly from a random distribution: http://depts.alverno.edu/nsmt/stats.htm

Expected range: 36.2 (average of the clicks) P-value: 0.14

Typically you look for p-values of less than .05 to indicate statistical significance. So unfortunately this one test suggests the data falls within the range of normal (random) distribution.