What is the decimal rounded to the nearest thousand of 369/460
2 answers:
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Answer:
Mean = 160 births
Variance = 156.8 births
Standard deviation = 12.522 births
Step-by-step explanation:
The mean number of births resulting in twins is given by the sample size (n=8000 births) multiplied by the probability of twins in any birth (p=2%).
In a binomial distribution like this one, the variance is given by:
The standard deviation is simply the square root of the variance: