8. [0/2 points) DETAILS PREVIOUS ANSWERS BERRAPCALC7 11.4.037. MY NOTES x²12 is maximized. 27 Find the x-value at which

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8 0 2 Points Details Previous Answers Berrapcalc7 11 4 037 My Notes X 12 Is Maximized 27 Find The X Value At Which 1 (65.42 KiB) Viewed 51 times

8. [0/2 points) DETAILS PREVIOUS ANSWERS BERRAPCALC7 11.4.037. MY NOTES x²12 is maximized. 27 Find the x-value at which the standard normal probability density function f(x) = x = 2 x Also find the value of the function at this x-value. Need Help? Read It 9. [1/1 Points] DETAILS PREVIOUS ANSWERS BERRAPCALC7 11.4.031. MY NOTES PRACTICE ANOTHER Assume that X and Y are normal random variables. No calculation is necessary. If X and Y both have mean 0 but (x) = 6 and on) = 8, then which is greater: P(X > 9) or PCY > 9)? O P(X> 9) OPY>9) Need Help? Read It 10. [-/1 Points] DETAILS BERRAPCALC7 11.4.026. MY NOTES PRACTICE ANOTHER Modern portfolio theory generally assumes that the yield on a diversified portfolio of investments will be normally distributed around its historic mean. What is the probability that a diversified portfolio will yield at least 6.6% if the historic mean is 8.5% and the standard deviation is 1.0%? (Round your answer to four decimal places.) Need Help? Read It