document.write( "Question 139734: Having a lot of trouble with this. Please help and show me how so I can actually learn from all this. Thanks!\r
\n" ); document.write( "\n" ); document.write( "PS- I am allowed to use Megastat on this so any direction there would be welcomed as well.\r
\n" ); document.write( "\n" ); document.write( "Q: Labor negotiators estimate that 30% of all major contract negotiations result in a strike. During the next year, 12 major contracts must be negotiatied. Show all of your work, the results below are from MegaStat.\r
\n" ); document.write( "\n" ); document.write( "Binomial Distribution:
\n" ); document.write( "N 12
\n" ); document.write( "P 0.3 \r
\n" ); document.write( "\n" ); document.write( "Expected Value 3.600
\n" ); document.write( "Variance Standard 2.520
\n" ); document.write( "Deviation 1.587 \r
\n" ); document.write( "\n" ); document.write( "A. Determine the probabiltiy of no strikes next year.
\n" ); document.write( "B. Determine the probabiloty of 3 or 4 strikes next year.
\n" ); document.write( "C. What is the average number of strikes expected for next year?
\n" ); document.write( "

Algebra.Com's Answer #102051 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Q: Labor negotiators estimate that 30% of all major contract negotiations result in a strike. During the next year, 12 major contracts must be negotiatied. Show all of your work, the results below are from MegaStat.
\n" ); document.write( "Binomial Distribution:
\n" ); document.write( "N 12
\n" ); document.write( "P 0.3
\n" ); document.write( "Expected Value 3.600
\n" ); document.write( "Variance Standard 2.520
\n" ); document.write( "Deviation 1.587
\n" ); document.write( "---------------------
\n" ); document.write( "P(strike) = 0.3 ; P(no strike) = 0.7
\n" ); document.write( "---------------------------
\n" ); document.write( "A. Determine the probabiltiy of no strikes next year.
\n" ); document.write( "P(none in 12) = 0.7*12 = 0.1384...
\n" ); document.write( "----------------
\n" ); document.write( "B. Determine the probability of 3 or 4 strikes next year.
\n" ); document.write( "P(3 or 4) = Prob(3) + P(4) = 12C3(0.3)^3*(0.7)^9 + 12C4(0.3)^4*(0.7)^8
\n" ); document.write( "= 0.2397... + 0.2311396... = 0.47084...
\n" ); document.write( "----------------------
\n" ); document.write( "C. What is the average number of strikes expected for next year?
\n" ); document.write( "mean or average = np = 12*0.3 = 3.6 strikes per year
\n" ); document.write( "==================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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