GATE 2025 IN – Question 52
The probability of a student missing a class is 0.1. In a total number of 10 classes, the probability that the student will not miss more than one class is ___ (rounded off to two decimal places).
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Correct answer: 0.72 to 0.76
Explanation
For independent class attendance, missed classes follow Binomial(10,0.1).
Probability of zero or one miss is 0.9¹⁰+10(0.1)0.9⁹=0.73610.
Rounded to two decimals, **0.74**.