Mathematics · 2021
JEE Main · 27 July 2021, Shift 2 · Q77
A student appeared in an examination consisting of 8 true - false type questions. The student guesses the answers with equal probability. The…
A student appeared in an examination consisting of $\displaystyle 8$ true - false type questions. The student guesses the answers with equal probability. The smallest value of n, so that the probability of guessing at least '$\displaystyle \mathrm{n}$' correct answers is less than $\displaystyle \frac{1}{2}$, is :
Official answer
(3)
$\displaystyle 5$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.