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In a Binomial Distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials?
  • a)
    80/243
  • b)
    40/243
  • c)
    20/243
  • d)
    10/243
Correct answer is option 'A'. Can you explain this answer?
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In a Binomial Distribution, the mean is three times its variance. What...
np= 3 npq, where n= no. of trials
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In a Binomial Distribution, the mean is three times its variance. What is the probability of exactly 3 successes out of 5 trials?a)80/243b)40/243c)20/243d)10/243Correct answer is option 'A'. Can you explain this answer?
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