A binomial experiment has 5 trials and a success probability of 0.4 on each trial. What is the probability of exactly 3 successes?
Correct answer: C. 0.2304
- A. 0.1024
- B. 0.1536
- C. 0.2304
- D. 0.3456
Explanation
Use the binomial formula: C(5,3)(0.4)^3(0.6)^2. This equals 10 × 0.064 × 0.36 = 0.2304.
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