document.write( "Question 926303: multiple-choice test consists of 29 questions with possible answers of a, b, c, d. Estimate the probability that with random guessing, the number of correct answers is at least 14.\r
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document.write( "z-value (Use continuity correction)= \r
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document.write( "Probability=
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Algebra.Com's Answer #562171 by ewatrrr(24785) You can put this solution on YOUR website! p(correct) = .25, n = 29 \n" ); document.write( "..... \n" ); document.write( "P(x ≥ 14) = 1 - P(x ≤ 13) \n" ); document.write( " Using a TI calculator 0r similarly a Casio fx-115 ES plus \n" ); document.write( "P(x ≥ 14) = 1 - P(x ≤ 13) = 1 - binomcdf(29, .25, 13) = 1 - .9944 = .0056 \n" ); document.write( " |