Developed from celebrated Harvard statistics lectures, Introduction to Probability provides essential language and tools for understanding statistics, randomness, and uncertainty. The book explores a wide variety of applications and examples, ranging from coincidences and paradoxes to Google PageRank and Markov chain Monte Carlo (MCMC). Additional application areas explored include genetics, medicine, computer science, and information theory. The print book version includes a code that provides free access to an eBook version. The authors present the material in an accessible style and motivate concepts using real-world examples. Throughout, they use stories to uncover connections between the fundamental distributions in statistics and conditioning to reduce complicated problems to manageable pieces. The book includes many intuitive explanations, diagrams, and practice problems. Each chapter ends with a section showing how to perform relevant simulations and calculations in R, a free statistical software environment.

Developed from celebrated Harvard statistics lectures, Introduction to Probability provides essential language and toolsfor understanding statistics, randomness, and uncertainty. The book explores a wide variety of applications and examples, ranging from coincidences and paradoxes to Google PageRank and Markov chain Monte Carlo (MCMC). Additional application areas explored include genetics, medicine, computer science, and information theory. The authors present the material in an accessible style and motivate concepts using real-world examples. Throughout, they use stories to uncover connections between the fundamental distributions in statistics and conditioning to reduce complicated problems to manageable pieces. The book includes many intuitive explanations, diagrams, and practice problems. Each chapter ends with a section showing how to perform relevant simulations and calculations in R, a free statistical software environment. The second edition adds many new examples, exercises, and explanations, to deepen understanding of the ideas, clarify subtle concepts, and respond to feedback from many students and readers. New supplementary online resources have been developed, including animations and interactive visualizations, and the book has been updated to dovetail with these resources. Supplementary material is available on Joseph Blitzstein’s website www. stat110.net. The supplements include: Solutions to selected exercises Additional practice problems Handouts including review material and sample exams Animations and interactive visualizations created in connection with the edX online version of Stat 110. Links to lecture videos available on ITunes U and YouTube There is also a complete instructor's solutions manual available to instructors who require the book for a course.

The Department of Defense Sexual Assault Prevention and Response Office asked the RAND Corporation to conduct an assessment of the rates of sexual assault, sexual harassment, and gender discrimination in the U.S. military. This volume presents survey estimates of how risk of sexual assault and sexual harassment varies across military installations and major commands using data from the 2014 RAND Military Workplace Study.

"In August 2015, René Thomas-Rizzo, director, Human Capital Initiatives, Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics, asked the RAND Corporation to undertake a study to accomplish the fiscal year (FY) 2016 assessment of the Civilian Acquisition Workforce Personnel Demonstration Project (AcqDemo) mandated in the National Defense Authorization Act (NDAA) of FY 2011. AcqDemo aims to provide a system that retains, recognizes, and rewards employees for their contributions and supports their personal and professional development. The assessment used multiple data sources to evaluate how well AcqDemo has performed with respect to these goals. The assessment directly addresses the original 12 criteria enumerated in the NDAA, as well as five new criteria specified by the AcqDemo Program Office. These criteria call for a look at the following: AcqDemo's key features pertaining to hiring, appointments, and performance appraisal; the adequacy of its guidance, protections for diversity, efforts to ensure fairness and transparency, and means used to involve employees in improving AcqDemo; AcqDemo's impact on career outcomes, such as compensation, promotion, and retention, particularly with respect to similar outcomes for the General Schedule workforce; ans AcqDemo's ability to support the acquisition mission. This executive summary presents the key findings of this research. A more detailed account of the research methods and findings can be found in 2016 Assessment of the Civilian Acquisition Workforce Personnel Demonstration Project, by Jennifer Lamping Lewis, Laura Werber, Cameron Wright, Irina Danescu, Jessica Hwang, and Lindsay Daugherty, RR-1783-OSD, 2017."--Publisher's description.

"In August 2015, René Thomas-Rizzo, director, Human Capital Initiatives, Office of the Under Secretary of Defense for Acquisition, Technology, and Logistics, asked the RAND Corporation to undertake a study to accomplish the fiscal year (FY) 2016 assessment of the Civilian Acquisition Workforce Personnel Demonstration Project (AcqDemo) mandated in the National Defense Authorization Act (NDAA) of FY 2011. AcqDemo aims to provide a system that retains, recognizes, and rewards employees for their contributions and supports their personal and professional development. The assessment used multiple data sources to evaluate how well AcqDemo has performed with respect to these goals. The assessment directly addresses the original 12 criteria enumerated in the NDAA, as well as five new criteria specified by the AcqDemo Program Office. These criteria call for a look at the following: AcqDemo's key features pertaining to hiring, appointments, and performance appraisal; the adequacy of its guidance, protections for diversity, efforts to ensure fairness and transparency, and means used to involve employees in improving AcqDemo; AcqDemo's impact on career outcomes, such as compensation, promotion, and retention, particularly with respect to similar outcomes for the General Schedule workforce; AcqDemo's ability to support the acquisition mission. The RAND team found that some aspects of AcqDemo are performing well, while others leave room for improvement"--Publisher's web site.

Information-sharing became a central element of the policy debate about U.S. homeland and national security after the September 11, 2001, terrorist attacks. However, sharing of information across jurisdictional lines is just as important for everyday criminal justice efforts to prevent and investigate crime, and systems to provide such capabilities have been in place for many years. Despite widespread belief that information-sharing is valuable, there have been relatively limited efforts to measure its effect on criminal justice outcomes. To help address this need, we examined the measurement of information-sharing effects from the strategic to the tactical levels, with a focus on developing reliable measurements that capture the range of ways sharing can affect outcomes and how the practicalities of law enforcement work practices can affect measurement. In collaboration with an advanced regional information-sharing agency, we developed techniques to examine the effects of multiple types of data-sharing at the officer, case, and offender levels. Analyses showed significant correlations between different types of sharing on the level of interagency involvement in cases for individual offenders, on the timing and likelihood of specific law enforcement events, and on the likelihood of individual police officers to be involved in cross-jurisdictional arrests. In addition, we explored lessons for future policy evaluation and information system design to facilitate measurement.

An interactive story for a pair of younger and older reading buddies about a young manta ray's afternoon swim home from school.