SOLUTION: The probability that a birth will result in twins is 0.015 . Assuming independence​ (perhaps not a valid​ assumption), what is the probability that out 190 births in a​ hosp

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Question 1168766: The probability that a birth will result in twins is 0.015 . Assuming independence​ (perhaps not a valid​ assumption), what is the probability that out 190 births in a​ hospital, there will be exactly 2 sets of​ twins?
Answer by ikleyn(52868)   (Show Source): You can put this solution on YOUR website!
.
It is the binomial type probability distribution.


The number of trial n= 190; the probability of the success trial is  0.015,  and the number of success trial k = 2. 


P =  =  = 0.235711.     ANSWER

Solved.

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To see many other similar solved problems, look into the lessons
    - Simple and simplest probability problems on Binomial distribution
    - Typical binomial distribution probability problems
in this site.



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