Mathematics · 2020
JEE Main · 5 September 2020, Shift 1 · Q75
Four fair dice are thrown independently 27 times. Then the expected number of times, at least two dice show up a three or a five, is \ \ \ \.
Four fair dice are thrown independently $\displaystyle 27$ times. Then the expected number of times, at least two dice show up a three or a five, is \_\_\_\_.
Official answer
11
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.