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An experiment consists of throwing two six-sided dice and observing the number of spots on the upper faces. Determine the probability that
a. the sum of the spots is 3.
b. each die shows four or more spots.
c. the sum of the spots is not 3.
d. neither a one nor a six appear on each die.
e. a pair of sixes appears.
f. the sum of the spots is 7.
Grease
A thick lubricant made from oil or fats mixed with thickening agents, used for reducing friction between surfaces.
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Materials derived from living organisms, including plant and animal remains, used to improve soil fertility in agriculture.
Wastewater Treatment
The process of removing contaminants from wastewater to make it safe for release into the environment or for reuse.
Ultraviolet Light
Electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, which is invisible to the human eye.
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