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Miller twist rule is a mathematical formula derived by American physical chemist and historian of science Donald G. Miller (1927-2012) to determine the rate of twist to apply to a given bullet to provide optimum stability using a rifled barrel. [1]
This algorithm creates a number between 0 and 1 that is approximately uniformly distributed in that space. If the P k of a weapon/target engagement is 30% (or 0.30), then every random number generated that is less than 0.3 is considered a "kill"; every number greater than 0.3 is considered a "no kill". When used many times in a simulation, the ...
RFMTC – Recency, Frequency, Monetary Value, Time, Churn rate is an augmented RFM model proposed by Yeh et al. (2009). [6] The model utilizes Bernoulli sequence in probability theory and creates formulas that calculate the probability of a customer buying at the next promotional or marketing campaign.
The Erlang C formula expresses the probability that an arriving customer will need to queue (as opposed to immediately being served). [11] Just as the Erlang B formula, Erlang C assumes an infinite population of sources, which jointly offer traffic of erlangs to servers. However, if all the servers are busy when a request arrives from a source ...
In epidemiology and biostatistics, the experimental event rate (EER) is a measure of how often a particular statistical event (such as response to a drug, adverse event or death) occurs within the experimental group (non-control group) of an experiment.
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When we calculate the expected return of an investment it allows us to compare it with other opportunities. For example, suppose we have the option of choosing between three mutually exclusive investments: One has a 60% chance of success and if it succeeds it will give a 70% ROR (rate of return).
Graham later revised his formula based on the belief that the greatest contributing factor to stock values (and prices) over the past decade had been interest rates. In 1974, he restated it as follows: [4] The Graham formula proposes to calculate a company’s intrinsic value as: