document.write( "Question 1196772: A survey of 52 U.S. supermarkets yielded the following relative frequency table, where X is the number of checkout lanes at a randomly chosen supermarket.
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\n" ); document.write( "P(X = x)
\n" ); document.write( "0.01 0.02 0.02 0.10 0.10 0.15 0.25 0.20 0.10 0.05
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\n" ); document.write( "Compute 𝜇 = E(X). HINT [See Example 3.]
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Algebra.Com's Answer #829760 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "Do arithmetic on your own.\r\n" );
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document.write( "Use the formula  E = .\r\n" );
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document.write( "All components of this formula are given to you.\r\n" );
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\n" ); document.write( "\n" ); document.write( "You just have full instruction set to complete this job on your own.\r
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\n" ); document.write( "\n" ); document.write( "On the way, learn the formula for mathematical expectation E(X).\r
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