document.write( "Question 1204317: Find the indicated probability assuming that x is a random variable with a normal distribution with the given mean and standard deviation. (Round your answer to four decimal places.)
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document.write( "P(41 ≤ x ≤ 116), 𝜇 = 10, 𝜎 = 50
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document.write( "0.6715
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document.write( "Incorrect: Your answer is incorrect. \n" );
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Algebra.Com's Answer #840492 by math_tutor2020(3817)![]() ![]() ![]() You can put this solution on YOUR website! Answer: 0.2506\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Explanation\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As one method, you can use a table similar to what is described in this previous question \n" ); document.write( "https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1204309.html \n" ); document.write( "But you'll need to convert each raw score to a z score. \n" ); document.write( "Use the formula: z = (x - mu)/sigma\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Or you can use a TI83/TI84 \n" ); document.write( "https://www.statology.org/normal-probabilities-ti-84-calculator/ \n" ); document.write( "The input would be normalCDF(41,116,10,50) \n" ); document.write( "The template in general is normalCDF(lower,upper,mean,standard deviation)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The result of that calculation is approximately 0.2506258718 which rounds to 0.2506\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Or you can use this stats calculator that provides a diagram \n" ); document.write( "https://davidmlane.com/normal.html \n" ); document.write( " ![]() \n" ); document.write( "If you use WolframAlpha, be careful that the diagram shown on WolframAlpha is not correct. The normal distribution curve should be entirely above the x axis. Refer to the first link for a comparison of what I mean. \n" ); document.write( " \n" ); document.write( " |