Aneas arnold sells lighting supplies. she travels all over new england. her total monthly expenses for august, september, and october were $2,700, $1,100 and $2,200. what was her average monthly expenditure?

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18 }, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.