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1.1Mathematics A quantity whose value is selected for the particular circumstances and in relation to which other variable quantities may be expressed.
‘As gene diversity is a continuous variable, the expected value of the parameter was calculated using a sliding window of 0.0125.’
‘The real effort goes into testing these hypotheses and calculating the true values of parameters such as N.’
‘The x-axis is the value of the selection parameter in the PRF model under which the data were simulated.’
‘Choosing different values for the various parameters in the equation he then tried to investigate when situations were stable and when they were unstable.’
‘On the other hand, keeping m and n fixed for a few trials leaves a lot of room to experiment with the third parameter even for small values of m and n.’
1.2Statistics A numerical characteristic of a population, as distinct from a statistic of a sample.
‘The normal curve approach to inference begins by asserting a null hypothesis that is expressed using population parameters.’
‘This will remind test users that the reliability coefficient in hand is not the population parameter and that the reliability estimate is affected by sampling error.’
‘Typically, polymorphism in a sample is needed to perform those tests and estimate population parameters.’
‘The spiral pattern is sufficiently regular that it leads to a numerical parameter characteristic for the species, called its divergence.’
‘Such a ‘rate’ can be modeled statistically by the probability parameter of a binomial distribution.’
2A limit or boundary which defines the scope of a particular process or activity.
‘the parameters within which the media work’
‘First, I do not accept the framework you outline above as limiting the parameters of our debate.’
‘Such a voluntary approach is limited to the parameters the company sets for itself.’
‘However, I can't get away from the fact that my guiding parameters are somewhat limited by my lack of motoring knowledge.’
‘And so, media debate is restricted within tightly constrained parameters that serve capital, but not democracy.’
‘One of the main benefits of a home birth is the amount of control a mother can exercise over the location and parameters of the birthing process.’