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Mathematics, 18.03.2021 20:00 seymani2

Data from the National Vital Statistics Report reveal that the distribution of the duration of human pregnancies is approximately normal with mean = 270 and standard deviation = 15. Use the table of standard normal probabilities to determine the probability that a given pregnancy comes to term in: A. less than 244 days (about 8 months)
. B. more than 275 days (about 9 months).
C. over 300 days.
D. between 260 and 280 days.

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