5) A random variable Y is distributed Y~N(10,25). Find the upper quartile (third quartile). Solution? The upper quartile is a value which has 75% of the data below it. We use the inverse normal function with an area of 0.75, a mean of 10, and a standard deviation of 25, to get a value of approximately 28.9.

Q: This answer is incorrect. Can you try again?

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Q: Please answer questions D & E as well. Thank you

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Q: Can you do questions c and d? in clear way possible

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