Days until Changes Probability 1.5 0.15 3.0 0.15 4.5 0.40 5.0 0.20 7.0 0.10 Let the random variable X denote the days until change. Calculate the mean for X. Give exact answer. E(X) = i days Calculate the variance for X. Round your answer to three decimal places (e.g. 9 V(X) = i days?

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Q: Given that Ep,q, = 250, Ep.4, = 150, Paasche's index number = 150 and Dorbish Bowley's index number ...

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Q: Evaluate each of the following: 35 1. i i=1 56 Σ 2. i i=15 22 3. i=1

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Q: 4. For a normal population with u = 100 with a- 20, a. What is the probability of obtaining a sample...

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Q: 1 2 3 f(x) 0.025 0.041 0.049 0.074 4 7 f(x) 0.098 0.205 0.262 0.123 8. 9. f(x) 0.074 0.049 (a) P(X6)...

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Q: (Boole's inequality) : If A1 ,A2 ...... An are n events, then (i) P A, > E P (A¡) -(n-1) i=1

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