The mean mark on a state-administered mathematics exam by a 10th grade class in Smalltown, Wisconsin, was 95%, while the mean mark on the same exam by 10th grade students in the entire state of Wisconsin was reported to be only 78%. This suggests that the mean can be __________.

a parameter or a statistic

a parameter only

a statistic only

neither a parameter nor a statistic

hatemathssss Apr 15, 2021