spends as a random variable uniformly distributed mount that Juliet spends as a uniform random varia ill also assume that the amounts they spend are inc What is the pdf of Z, the total amount of money (ir other this Valentine's day?

Q: Use the Standard Normal Table or technology to find the z-score that corresponds to the cumulative…

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A: X1 ∼ N(0.7,1.4), X2 ∼ N(−0.5,1.2), X3 ∼ N(0.9,1.7), and X4 ∼ N(−0.2,2.1), independently.

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A: Mean=0Standard deviation=1

Q: cated z-score shown in the graph to the right. vo decimal places as needed.) Aream 0.2981 최 2-76

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Q: d) Find P(27060 ≤ (X-500)² ≤ 50240). e) Find the mean of (X - 500)², i.e. E ((X - 500)²).

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A: It is given that Small marbles = 20Large marbles = 5Total marbles = 25

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Q: From the following table of joint pdf's, calculate P(T=41A=2).(Answer in percentage terms, but…

A: T=1T=4A=20.21A=50.290.34