Star rating is based on the three attributes of broker firm. Those attributes being together can predict the future Star rating. None of the attributes are perfectly correlated, even it is rare in life but out of these three attributes, range of offerings is highly correlated to ratings. Where as the ease of use has weak relation of only 0.42 with star rating. Trade execution which is important quality of the broker firm has 0.746 correlations. Correlation of rating and ranges is 0.827.