document.write( "Question 1161871: A company prices its tornado insurance using the following assumptions:
\n" ); document.write( "• In any calendar year, there can be at most one tornado.
\n" ); document.write( "• In any calendar year, the probability of a tornado is 0.02.
\n" ); document.write( "• The number of tornadoes in any calendar year is independent of the number of tornados in any other calendar year.
\n" ); document.write( "Using the company's assumptions, calculate the probability that there are fewer than 3 tornadoes in a 18-year period.
\n" ); document.write( "Hint: Use the binomial distribution with n = 18 and p = 0.02.
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Algebra.Com's Answer #785633 by Boreal(15235)\"\" \"About 
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this would be 0,1,2 tornadoes
\n" ); document.write( "for 0 it would be 0.98^18=0.6951
\n" ); document.write( "for 1 it would be 18*0.98^17*0.02=0.2554
\n" ); document.write( "for 2 it would be 18C2*0.98^16)*0.02^2=0.0443
\n" ); document.write( "0.9948 is the sum of the three and the probability.\r
\n" ); document.write( "\n" ); document.write( "or 2nd VARS scroll down to binomcdf ENTER (18,0.02,2)=0.9948. (n,p,x)
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