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What is the standard deviation of the normal distribution

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Reference no: EM131672755

Question: 1. A normal distribution has a mean equal to 45. What is the standard deviation of this normal distribution if 2.5% of the proportion under the curve lies to the right of x = 50.88?

2. A normal distribution has a mean equal to 10. What is the standard deviation of this normal distribution if the cutoff for the bottom 5% is X= 12.47?

Reference no: EM131672755

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