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?
In: 0
If you have ABSOLUTELY no clue, and want to randomly guess, you should guess all of one letter because the test is engineered to have an even distribution of letters: you will get roughly 20% right if you guess all A’s, but could easily get 40% or 0% right if you do a pattern.
However, in reality, if you know anything about the subject, just looking at them and picking “your favorite” will have better odds than a total wild guess, even if you have no sensible idea about why the answer you like might be right.
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