Counting heads and Exit poll

Exit poll and counting heads are semantically related In some cases you can replace phrase "Exit poll" with "Counting heads", this phrases are similar.

Exit poll noun - A poll of voters as they leave the voting place; usually taken by news media in order to predict the outcome of an election.

Counting heads and exit poll are semantically related in poll of people after voting topic. You can use "Counting heads" instead a noun phrase "Exit poll".