document.write( "Question 880801: a lot containing 8 tires components is sampled by a quality inspector; the lot contains 2 bad components. the inspector takes a sample of 4. find the expected value of the number of good components in the sample \n" ); document.write( "
Algebra.Com's Answer #531715 by ewatrrr(24785)\"\" \"About 
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p(def) = 2/8 = 1/4, p(good) = 3/4
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\n" ); document.write( "E(good) = (3/4)4 = 3
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