Question
The probability of a student solving a problem correctly
is 0.6. Out of 10 independent attempts, what is the probability that he solves at least 8 ?Solution
We are given a binomial probability problem:
- Probability of success (solving correctly): p = 0.6
- Probability of failure: q = 1 − p = 0.4
- Number of trials: n = 10
- We need: P(X ≥ 8)
i.e., probability of solving at least 8 problems out of 10.
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