This question asks you to graphically summarize the data. create a plot with factor `a` on the x-axis, and, using 3 different plotting symbols, the mean for each level of factor `b` above each level of factor `a` (see kidney data example). does there appear to be any interactions?

What policy did "jim crow" laws put in place? black codes integration segregation 2. the supreme court case that established the doctrine of "separate but equal" was dred scott v. sandford plessy v. ferguson brown v. board of education 3. the supreme court case that overturned the doctrine of "separate but equal" wasdred scott v. sandford plessy v. ferguson brown v. board of education

11. why do citizens have to register to vote?

The defendant is charged with the battery of a bouncer at a local tavern. at the trial, the prosecutor introduces evidence that while the bouncer was attempting to question the defendant about her intoxicated demeanor, the defendant committed a battery on the bouncer. the defendant attempts to defend against the charge on the basis of self-defense, insisting that the bouncer used excessive force in stopping her from entering the tavern. the defendant attempts to introduce into evidence an authenticated copy of the tavern records that show that three patrons had written complaints against the bouncer within the past six months for the use of excessive force. the prosecutor objects on the grounds that the records are inadmissible character evidence. should the court sustain the objection?