There are three classifications for a UCL injury of the elbow: 1  A first-degree sprain occurs when the ligament is strained without it becoming stretched. 2  A second-degree sprain occurs when the ligament is stretched. 3  A third-degree sprain occurs when the ligament has been torn or ruptured.
Heads â that value is within 5 percent (high or low) or what the home is actually worth. Tails â that value could be 10 percent, 20 percent or more off target. Beginning in 2010, McEnearney Associates has examined the accuracy of the estimates for property values that Zillow provides â its âZestimatesâ of value.
Zestimates: Improving accuracy. Zillow says Zestimates currently have a median error rate of 8%. That may seem to be a large margin â but it has improved. The algorithm began with a 13.6% median error rate in 2006, according to Zillow. However, error rates can vary widely, depending on where you live.