The lengths of a particular animal s pregnancies are approximately normally distributed with mean 256...
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The lengths of a particular animal s pregnancies are approximately normally distributed with mean 256 days and standard deviation 8 days a What proportion of pregnancies lasts more than 266 days b What proportion of pregnancies lasts between 252 and 258 days c What is the probability that a randomly selected pregnancy lasts no more than 246 days d A very preterm baby is one whose gestation period is less than 236 days Are very preterm babies unusual Click the icon to view a table of areas under the normal curve a The proportion of pregnancies that last more than 266 days is Round to four decimal places as needed
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