Context: I’m always told on big tests that if I run out of time I should bubble all A’s or something because it’s a better chance I get it right than if I sporadically bubble answers. Why isn’t it just a consistent 25% chance?
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I’ve never heard this before. In theory, if the answers are evenly distributed then selecting all As should ensure that you’ll get 25% of them correct. Random guessing could give more or less correct answers, so I imagine this strategy is supposed to be a safe bet that you’ll get a few correct answers.
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