Like with friend count, we can fit a linear model that uses feedback indicators such as unique commenters and unique likers to predict the fraction of friends that see a post. This model also explains very little variance(R2 = .13,p < .001). Like the previous model,its mean absolute error is8%,so the average prediction is off by 8%from the actual percentage of friends who saw the post. These results are nearly identical to those for the linear predictor based on friend count.