document.write( "Question 464672: the probability that a certain pitcher will throw a strick is .75. what is the probability that he will strick a batter out in three pitches. \r
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\n" ); document.write( "\n" ); document.write( " What is the probability that he walks the batter? \n" ); document.write( "

Algebra.Com's Answer #318330 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Note: The probability of x successes in n trials is: 
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document.write( "P = nCx*  where p and q are the probabilities of success and failure respectively. 
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document.write( "In this case p = .75 & q = .25
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document.write( "nCx = 
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document.write( " P(3 strikes in 3 pitches) = 3C3 (.75)^3 = .75^3 = .4219
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document.write( " P(3 strikes in 4 pitches) = 4C3(.75)^3*.25 = 4*(.75)^3*.25 = .4219 
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document.write( " P(0 strikes in 4 pitches) = 4C0 (.25)^4 = .0039 \n" );
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