The following table provides a probability distribution for the random variable x.Excel File: data05-15.xlsxf(x)30.250.500.25a. Compute E(x) , the expected value of x.b. Compute o 2, the variance of x (to 1 decimal).c. Compute o, the standard deviation of x (to 2 decimals).

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ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

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Given that z is a standard normal random variable, compute the following probabilities. Round your answers to 4 decimal places. a. P(0 ≤ z≤ 0.63) b. P(-1.59 ≤ ≤ 0) c. P(Z > 0.30) d. P(z > -0.31) e. P(Z < 2.17) f. P(z ≤ -0.61)
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The following table provides a probability distribution for the random variable r. Excel File: data05-15.xlsx f(x) 0.25 0.50 9 0.25 a. Compute E(x), the expected value of x. b. Compute o 2, the variance of x (to 1 decimal). c. Compute o, the standard deviation of x (to 2 decimals).