document.write( "Question 1164737: A trading company has eight computers that it uses to trade on the New York Stock Exchange
\n" ); document.write( "(NYSE). The probability of a computer failing in a day is 0.005, and the computers fail
\n" ); document.write( "independently. Computers are repaired in the evening and each day is an independent trial.
\n" ); document.write( "(a) What is the probability that all eight computers fail in a day?
\n" ); document.write( "(b) What is the mean number of days until a specific computer fails?
\n" ); document.write( "(c) What is the mean number of days until all eight computers fail in the same day\r
\n" ); document.write( "\n" ); document.write( "compute the solution in R ? \n" ); document.write( "

Algebra.Com's Answer #853539 by ikleyn(53618) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "A trading company has eight computers that it uses to trade on the New York Stock Exchange
\n" ); document.write( "(NYSE). The probability of a computer failing in a day is 0.005, and the computers fail
\n" ); document.write( "independently. Computers are repaired in the evening and each day is an independent trial.
\n" ); document.write( "(a) What is the probability that all eight computers fail in a day?
\n" ); document.write( "(b) What is the mean number of days until a specific computer fails?
\n" ); document.write( "(c) What is the mean number of days until all eight computers fail in the same day
\n" ); document.write( "compute the solution in R ?
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document.write( "(a)  What is the probability that all eight computers fail in a day?\r\n" );
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document.write( "     This probability is  P =  = 3.90625E-19.    ANSWER\r\n" );
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document.write( "     Interesting to note that this number is a PRECISE value - not an approximate !\r\n" );
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document.write( "(b)  What is the mean number of days until a specific computer fails?\r\n" );
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document.write( "     The mean number of days until a specific computer fails is  \r\n" );
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document.write( "         = 200 days.    ANSWER\r\n" );
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document.write( "(c) What is the mean number of days until all eight computers fail in the same day\r\n" );
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document.write( "     The mean number of days until all eight computers fail in the same day is  \r\n" );
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document.write( "          = 2.56E+18 =  days.    ANSWER\r\n" );
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document.write( "      According to the current knowledge, our Universe exists about 13.8 billion years,\r\n" );
document.write( "      which is less than the answer to this question.\r\n" );
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