A study found that most of the strokes diagnosed by doctors occurred in the left side of patients' brains. ████ ████████ ████ ██████████ ███████ ███ ████ ██████ ████ █████████ ███████ ██ ██ ███████████ █████ ████████
The author hypothesizes that strokes in the right side of the brain are more likely to go undiagnosed than strokes in the left side of the brain. Why? Because most strokes diagnosed by doctors are left-side strokes.
The author assumes doctors diagnose more left-side strokes because they correctly identify them at a higher rate, and not for any other reason. In particular, this means assuming strokes are no more likely to occur in the left side of the brain than the right.
The conclusion of the argument ██ ████████ █████████ ██ █████ ███ ██ ███ █████████ █████████ ███ ████████
patients who have ███████ █████████ ████ ████ █████ ██████ ████████
it is very ██████ ████ ████ ██ ████ ███████ █████ ██ ███ █████ ████ ██ ███ █████ ██ ██ ███ ████ ████
doctors vary greatly ██ ███ ████████ ██ █████ █████████ ██ ███████
the symptoms of ██████████ ███████ ████ ██ ██ █████████ ████ ███ ████████ ██ █████████ ███████
other studies have █████████ ████ █ █████ ██████ ██ █████ ███████ ██ ███████████