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Observations of the cosmic background radiation from the COBE satellite revealed tiny variations in its temperature by about 1 part in 100,000.
Probability
A quantitative assessment of an event's probability, given as a number from 0 to 1.
Choosing
The act of selecting from a number of alternatives or possibilities.
Day
A unit of time equivalent to 24 hours, representing the period it takes for the Earth to complete one full rotation on its axis.
Week
A time unit consisting of seven days, commonly used as a standard period for work and rest cycles.
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