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  2. 3 Best Stock Market Simulators of 2022 - AOL

    www.aol.com/finance/3-best-stock-market...

    The simulator works as a stock market game by providing players with virtual cash to buy and sell investments. Pros Investors can simulate success in the market by trying real-world strategies.

  3. Mathematical modelling of infectious diseases - Wikipedia

    en.wikipedia.org/wiki/Mathematical_modelling_of...

    Models use basic assumptions or collected statistics along with mathematics to find parameters for various infectious diseases and use those parameters to calculate the effects of different interventions, like mass vaccination programs. The modelling can help decide which intervention(s) to avoid and which to trial, or can predict future growth ...

  4. Rate ratio - Wikipedia

    en.wikipedia.org/wiki/Rate_ratio

    In epidemiology, a rate ratio, sometimes called an incidence density ratio or incidence rate ratio, is a relative difference measure used to compare the incidence rates of events occurring at any given point in time. It is defined as:

  5. Stock market simulator - Wikipedia

    en.wikipedia.org/wiki/Stock_market_simulator

    A stock market simulator is computer software that reproduces behavior and features of a stock market, so that a user may practice trading stocks without financial risk. Paper trading , sometimes also called "virtual stock trading", is a simulated trading process in which would-be investors can practice investing without committing money.

  6. Case fatality rate - Wikipedia

    en.wikipedia.org/wiki/Case_fatality_rate

    In epidemiology, case fatality rate (CFR) – or sometimes more accurately case-fatality risk – is the proportion of people who have been diagnosed with a certain disease and end up dying of it. Unlike a disease's mortality rate, the CFR does not take into account the time period between disease onset and death. A CFR is generally expressed ...

  7. Rare disease assumption - Wikipedia

    en.wikipedia.org/wiki/Rare_disease_assumption

    and = / / = While the prevalence is only 9% (9/100), the odds ratio (OR) is equal to 11.3 and the relative risk (RR) is equal to 7.2. Despite fulfilling the rare disease assumption overall, the OR and RR can hardly be considered to be approximately the same. However, the prevalence in the exposed group is 40%, which means is not sufficiently small

  8. WAIFW matrix - Wikipedia

    en.wikipedia.org/wiki/WAIFW_matrix

    In infectious disease modelling, a who acquires infection from whom (WAIFW) matrix is a matrix that describes the rate of transmission of infection between different groups in a population, such as people of different ages. [1]

  9. Relative risk - Wikipedia

    en.wikipedia.org/wiki/Relative_risk

    The relative risk (RR) or risk ratio is the ratio of the probability of an outcome in an exposed group to the probability of an outcome in an unexposed group. Together with risk difference and odds ratio , relative risk measures the association between the exposure and the outcome.