Examlex
The t-distribution is used in a confidence interval for a mean when the actual standard error is not known.
Green
Often associated with the color representing nature, growth, renewal, and environmental sustainability.
Trichromatic Theory
A theory of color vision that suggests our eyes can perceive color because they can detect three different wavelengths of light corresponding to red, green, and blue.
Helmholtz
A German physicist and physician known for his contributions to the understanding of the mechanisms of vision and hearing among other areas.
Color Vision
The ability of organisms to differentiate colors, achieved through the varying sensitivities of photoreceptor cells in the eyes.
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