Math Questions

1. An ESS is an information system that supports the: long-range planning activities of senior management. knowledge and data workers in an organization. decision-making and administrative activities of middle managers. day-to-day processes of production. management of customer relationships.

1. Which type of system would you use to determine what trends in your supplier's industry will affect your firm the most in five years? ESS TPS MIS DSS KWM

1. Which of the following is an example of a key force in a firm's broader, less immediate environment? Competitors Regulations Suppliers Economic trends Customers

1. Instant messaging, videoconferencing, and shared screens are all examples of ________ collaboration tools. bimodal colocated synchronous spontaneous asynchronous

1. The goal of social commerce applications is to: connect through personal and business profiles. use social media to connect with customers. share opinions about purchasing products or services. upload and share business documents. harness collective knowledge to generate new ideas.

1. You manage the Information Systems department at a small startup Internet advertiser. You need to set up an inexpensive system that allows customers to see real-time statistics, such as views and click-throughs, about their current display ads. Which type of system will most efficiently provide a solution? CRM Enterprise system Extranet Intranet KWM

1. The use of digital technology and the Internet to execute the major business processes in the enterprise is called: e-commerce. e-business. enterprise applications. MIS. KWM.

1. In a business environment, the focus of collaboration is to: accomplish the task at hand. provide a sense of community. foster better communication. prevent miscommunication. increase a firm's profit margin.

1. From your reading of the chapter-opening case study discussing ABB's use of enterprise social networking, which of the following statements best expresses ABB's experience? ABB's primary motivation for replacing its existing corporate intranet was to enhance its security. Implementing Yammer improved employee productivity and collaboration. Efforts to implement Yammer were met with significant resistance from employees. Yammer provided ABB with a single entry point to all the information and tools ABB employees need for their jobs.

1. Which of the following Google tools allows people to engage in group video chat? Google Drive Google Docs Google Apps for Business Google Circles Google Hangouts

L'incidence cumulée est la probabilité de contracter une maladie.

La prévalence est la proportion de sujets atteints d'une maladie à un moment donné.

La prévalence est le taux de survenue de nouveaux cas d'une maladie au cours d'une période donnée.

10. It is possible to use priors that are not pdf (for instance, whose integrals diverge).A. TrueB. False

21. Bayesian inference can provide much more meaningful results than frequentists procedures because frequentist procedures account for previous knowledge much less efficiently, or not at all.A. TrueB. False

25. The idea of Jeffrey's prior is to :A. Give more weight to the parameter values that are easier to estimate (in a frequentist setting)B. Use a uniform prior so that the inference process remains objective C. Use the MLE in the prior

19. The prior can have several maxima.A. TrueB. False

22.A. In the frequentist view, probabilities refer to frequencies of events, while in the Bayesian view probabilities are not frequencies but reflect a degree of subjective beliefB. In the frequentist view, probabilities are used to characterize parameters, while in the Bayesian view they are used to characterize prior data

20. Bayesian inference can provide very bad results if the prior is not well chosen.A. TrueB. False

6. In classical Bayes approach, the prior density can be chosen or adapted by looking at the data.A. TrueB. False