Mathematics, 25.03.2021 19:00 mia6291
The lengths of pregnancies are normally distributed with a mean of 269 days and a standard deviation of days. a. Find the probability of a pregnancy lasting 15 days or longer. b. If the length of pregnancy is in the lowest â2%, then the baby is premature. Find the length that separates premature babies from those who are not premature.
Answers: 3
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Nick has box brads. he uses 4 brads for the first project. nick letâs b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.
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