Question
Please help, I'm not sure what formulas to use. A large national study finds that 10% of pregnant women deliver prematurely. A local obstetrician is
Please help, I'm not sure what formulas to use.
A large national study finds that 10% of pregnant women deliver prematurely. A local obstetrician is seeing 20 pregnant women in the next week at their clinic.(round answers to 3 decimal places)
- What is the probability that none will deliver prematurely?
- What is the probability that fewer than 3 will deliver prematurely?
- What is the probability that none will deliver prematurely if, in fact, the true percentage who deliver prematurely is 6%?
- If the true percentage is 10% and this obstetrician has 125 pregnant women currently at their practice, how many would be expected to deliver prematurely? Remember this is number of people so answer appropriately.
- What would the standard deviation be in number of women for that expected number of premature deliveries calculated in (d). Remember this is number of people so answer appropriately.
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Statistics Informed Decisions Using Data
Authors: Michael Sullivan
5th Global Edition
1292157119, 978-1292157115
