document.write( "Question 1091422: I am not sure how to begin to solve this intermediate calculation. \r
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document.write( "According to a recent survey, 25% of college students use a smartphone. You randomly select 15 college students and ask if they use a smartphone. The probability that exactly 3 students in your sample use a smartphone is calculated using the following formula; \r
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document.write( "p=0.25 cubed x 0.75 to the twelfth x 455\r
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document.write( "to calculate the value of p, you perform a series of calculations, which of the above results should not be rounded. Solve for p. Round to the two decimal places.
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Algebra.Com's Answer #705848 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! This is a binomial probability computation \n" ); document.write( "nCp(p)^x(1-p)^n-x \n" ); document.write( "Use the problem above \n" ); document.write( "15C3*0.25^3*0.75^12 \n" ); document.write( "15C3=455 \n" ); document.write( "455*0.25^3*0.75^12=0.2252 or 0.23 \n" ); document.write( " |