This dot plot shows quiz scores.
Score: \(5\) \(6\) \(7\) \(8\) \(9\) \(10\)
Dots: \(\bullet\) \(\bullet~\bullet\) \(\bullet~\bullet~\bullet\) \(\bullet~\bullet~\bullet~\bullet\) \(\bullet~\bullet\) \(\bullet\)
How many students scored exactly \(8\)?
What this problem is really about
Treat the dot plot as a frequency map: each horizontal position is a score, while the height of its stack tells how many students earned that score. Because the question says exactly eight, isolate the stack aligned with eight before counting. This keeps neighboring scores from being mixed into the requested frequency.