Examlex
The standard deviation is a measure of how a set of data is clustered or distributed around its mean.
Lens
A transparent structure in the eye that focuses light onto the retina to create clear images.
Lens
A transparent optical device used to converge or diverge transmitted light and to form images.
Round
Having a shape or cross-section that is circular or nearly circular; often used to describe objects or shapes.
Close Objects
Objects that are situated near to one another in spatial terms.
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