Find the mean IQ for the eight students whose individual IQ scores are 80, 100, 105, 90, 112, 115, 110, 120.
mean = sum of all outcomes
total number of outcomes
=80 +100+105+90+112+115+110+120
8
=832
8
= 104
total number of outcomes
=80 +100+105+90+112+115+110+120
8
=832
8
= 104