TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) A scatter plot is used to visualize the association (or lack of association) between two quantitative variables. 1) T 2) The fitted intercept in a regression has little meaning if no data values near X = 0 have 2) T been observed. 3) The F statistic in a multiple regression is significant if at least one of the predictors has 3) F a significant t statistic at a given . 4) R2adj can exceed R2 if there are several weak predictors