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Mathematics 11 Online
OpenStudy (anonymous):

The length of human pregnancy is normally distributed with a mean of 280 days and a standard deviation of 10 days, so X ~ N(280, 10). A randomly selected woman’s pregnancy lasted 263 days. What z-score corresponds with this data value, and what does the z-score indicate?

OpenStudy (kropot72):

Do you know the formula to find the z-score?

OpenStudy (kropot72):

@onmypagrind Are you there?

OpenStudy (anonymous):

i got thanks

OpenStudy (kropot72):

np

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