document.write( "Question 438873: In 1999 the stock market took big swings up and down. A survey of 978 investors asked how often they tracked their portfolio. The table shows the investor responses. What is the probability that an adult investor tracks his or her portfolio daily?\r
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\n" ); document.write( "Don’t track 63\r
\n" ); document.write( "\n" ); document.write( "a. 0.225 b. 0.286 c. 0.28 d. 0.144 e. None of the above \n" ); document.write( "
Algebra.Com's Answer #303409 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "A survey of 978 investors asked how often they tracked their portfolio.
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document.write( "Daily               220
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document.write( "Weekly              280
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document.write( "Monthly             274
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document.write( "Couple of times/year 141
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document.write( "Don’t track           63 
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document.write( "total                978
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document.write( "What is the probability that an adult investor tracks his or her portfolio daily
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document.write( "According to this survey, one would expect that probability to be:
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document.write( " P ( daily) = 220/978 = .225 \n" );
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