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What is the 1st quartile of the percent change

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Reference no: EM131914145

"Suppose that over a year the daily percent change (+ or -) for the S&P 500 adjusted closing value is approximately normally distributed with a mean of +0.04% and a standard deviation of 0.90%. DON'T USE EXCEL FORMULAS"

A) What is the 1st quartile of the percent change?

B) The 80th percentile?

Can you please show me step by step how to solve these questions?

Reference no: EM131914145

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