Sentence examples for by random variation and from inspiring English sources
Yet evolutionary biologists asserted that the scientific evidence was clear: All biology could be explained by random variation and natural selection.
An elephant becomes an elephant by starting where it is, by random variation, and by interactions with its environment that encourage some changes and discourage others.
This latter method is less biased by random variation and therefore a more efficient estimate of the degree of explanation.
Observed differences between hospitals may however be partly explained by random variation and by differences in case mix, causing concerns aboutthe validity of such hospital comparisons.
Anselin Local Moran's I [ 46] allowed us to detect core clusters/outliers of districts with extreme HIV prevalence values unexplained by random variation, and to classify them into hotspots (high values next to high, HH), "coldspots" (low values next to low, LL) and spatial outliers (high amongst low, HL or vice versa, LH).
Second, the problem is not "evolution"–which means many things but rather Darwin's theory that all living things are descendants of a common ancestor that have been modified by random variations and natural selection.
To investigate whether the observed differences in the amount of recombination are accountable by random variation within and between lineages, we performed standard permutation tests.
Previous disease mapping work was based on collating, mapping and analysing prevalence or incidence data with conventional statistical approaches, which are affected by random variation due to population variability and a loss of statistical power when cases are assigned to subgroups (e.g., several geographic subareas).
For individual types of surgery, case mix varied less between hospitals, and differences were explained largely by random variation.
The idea of evolutionary algorithms is based on the generation of new parameter sets by random variation of an existing parameter set with adapted step size and selection of a set with better fitness.
"We're still caught out by random variation from one race to another," Hamilton said.
