public class StrengthManagerImpl extends BaseManager implements StrengthManager {
private StrengthDao dao;
public Float getAveragePower(List strengthPoints) {
StrengthComparator strengthComparator = new StrengthComparator();
Collections.sort(strengthPoints, strengthComparator);
//removing border values
if (strengthPoints.size() > 2) {
strengthPoints.remove(0);
strengthPoints.remove(strengthPoints.size() - 1);