Cost$-$per$-$thousand is defined as:

the cost to deliver a message to one thousand people

the percentage of the target audience that is exposed to any of the media

vehicles in the media plan during a specified time period

the average number of times that target consumers are exposed to the media

plan

the number of individuals who receive the copies of a publication distributed

through various channels $($e$.$g$.$ subscription, store purchase$)$

reach multiplied by frequency

the number of people who will be exposed to a message that appears in one or

more media vehicles