document.write( "Question 870612: twelve distinct positive integers are chosen without replacement from the first 50 positive integers. let x denote integer di visible by 5.
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Algebra.Com's Answer #525040 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "5, 10, 15, 20, 25, 30, 35, 40, 45, 50
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document.write( "E = mean = (1/10)(5+ 10+ 15+ 20+ 25+ 30+ 35+ 40+ 45+ 50)= 27.5
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document.write( "variance:
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document.write( "        x-27.5 (x-27.5)^2
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document.write( "5	-22.5	506.25
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document.write( "10	-17.5	306.25
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document.write( "15	-12.5	156.25
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document.write( "20	-7.5	56.25
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document.write( "25	-2.5	6.25
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document.write( "30	2.5	6.25
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document.write( "35	7.5	56.25
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document.write( "40	12.5	156.25
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document.write( "45	17.5	306.25
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document.write( "50	22.5	506.25
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document.write( "275	0	56.25 Variance = 506.25/9  (Using n-1)
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