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Solve the following.
The probability that a bulb produced in a factory will fuse after 150 days of use is . Find the…
The probability that a bulb produced in a factory will fuse after 150 days of use is $0.05$. Find the probability that out of 5 such bulbs:
At least one will fuse after 150 days of use.
Answer
Answer
AI$P(X \ge 1) = 1 - P(X = 0) = 1 - (0.95)^5$, with $n = 5$, $p = 0.05$, $q = 0.95$.
$= 1 - 0.7738 = 0.2262$
Final answer: $0.2262$
From ISC 2020 Mathematics Paper 1, question 14(iv).