Stock analysis. The price-eaming ratios of 100 randomly selected stocks from the New York Stock Exchange are: a. Find the mean of the price-earning ratios. (Type an integer or a decimal. Round to two decimal places) b. Find the standard deviation of the price-earning ratios. (Type an integer or a decimal. Round to two decimal places.) Interval -05-45 4.5-9.5 9.5-145 145-195 19.5-24.5 185-245 24.5-29.5 29.5-34.5 ---30183 Frequency

Q: Describe about the mean absolute deviation.

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Q: How to find the standard deviation

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Q: The standard deviation may not be greater than the mean. O True O False

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A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: Which measure would you use to explore the dispersion of your data? Choose all. variance mean mode…

A: We have given that,  Which measure would you use to explore the dispersion of your data?

Q: tandard error of the mean is used in the

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Q: is called the of the mean. standard error standard deviation O average error sigma

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Q: U(3, 92) mean and standard deviation

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Q: Describe about mean square between.

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Q: How does one calculate the standard deviation?

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Q: Explain Mean of the Squared Deviations?

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Q: Explain why we need to square the deviations from the mean in our calculation of the standard…

A: 3) The deviation formula is, Deviation=Xi-Mean In the formula Xi is individual scores.