Concept explainers
The number of legal induced abortions per year per 1000 U.S. women ages 15−44 [14] is given in Table 4.19.
For example, of 1000 women ages 15−44 in 1980, 25 had a legal induced abortion during 1980.
If we assume (1) no woman has more than 1 abortion and (2) the probability of having an abortion is independent across different years, what is the probability that a 15-yearold woman in 1975 will have an abortion over her 30 years of reproductive life (ages 15−44, or 1975−2004)?
Table 4.19 Annual incidence of legal induced abortions by time period
Studies have been undertaken to assess the relationship between abortion and the development of breast cancer. In one study among nurses (the Nurses’ Health Study II), there were 16,359 abortions among 2,169,321 person-years of follow-up for women of reproductive age. (Note: 1 person-year = 1 woman followed for 1 year.)
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Fundamentals of Biostatistics
- If a binomial experiment has probability p success, then the probability of failure is ____________________. The probability of getting exactly r successes in n trials of this experiment is C(_________, _________)p (1p)arrow_forwardA manufacturer has determined that a machine averages one faulty unit for every 500 it produces. What is the probability that an order of 300 units will have one or more faulty units?arrow_forwardIf a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the expected value of this game is E=0.9+0.1= .arrow_forward
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning