document.write( "Question 1179340: What is the paid-up life insurance value of a $50,000 20-year limited-payment life insurance policy that has been owned for 10 years, if the value per $1,000 unit is $428? \n" ); document.write( "
Algebra.Com's Answer #850244 by CPhill(1959)\"\" \"About 
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You've got the correct approach! Here's a recap of the steps and the final answer:\r
\n" ); document.write( "\n" ); document.write( "1. Define the Variables:\r
\n" ); document.write( "\n" ); document.write( "Mean (μ) = 287 grams
\n" ); document.write( "Standard deviation (σ) = 19 grams
\n" ); document.write( "Lower bound (x1) = 251 grams
\n" ); document.write( "Upper bound (x2) = 346 grams
\n" ); document.write( "2. Calculate the Z-Scores:\r
\n" ); document.write( "\n" ); document.write( "We need to convert the given weights to z-scores using the formula:\r
\n" ); document.write( "\n" ); document.write( "z = (x - μ) / σ\r
\n" ); document.write( "\n" ); document.write( "For x1 = 251 grams:
\n" ); document.write( "z1 = (251 - 287) / 19 = -36 / 19 ≈ -1.89
\n" ); document.write( "For x2 = 346 grams:
\n" ); document.write( "z2 = (346 - 287) / 19 = 59 / 19 ≈ 3.11
\n" ); document.write( "3. Find the Probabilities:\r
\n" ); document.write( "\n" ); document.write( "We want to find the probability P(-1.89 < Z < 3.11). This is equal to P(Z < 3.11) - P(Z < -1.89).\r
\n" ); document.write( "\n" ); document.write( "Using a z-table or calculator:
\n" ); document.write( "P(Z < 3.11) ≈ 0.9991
\n" ); document.write( "P(Z < -1.89) ≈ 0.0294
\n" ); document.write( "4. Calculate the Probability:\r
\n" ); document.write( "\n" ); document.write( "P(-1.89 < Z < 3.11) = 0.9991 - 0.0294 ≈ 0.9697
\n" ); document.write( "5. Convert to Percentage:\r
\n" ); document.write( "\n" ); document.write( "0.9697 * 100% = 96.97%
\n" ); document.write( "Answer:\r
\n" ); document.write( "\n" ); document.write( "The probability that a randomly picked fruit will weigh between 251 grams and 346 grams is approximately 96.97%.
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