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Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way G

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9® P(x+x)= et ei P(x2,4= 1-P(453):1-5 te Il- & lbs+h+*+-10.01g| O for m cubic light yr of space, no of star, = n/16 P(x>!)>0.

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