Question: Let X be a Normal random variable with mean = 30 and variance = 25. Which of the following is a Standard Normal random variable?

Let X be a Normal random variable with mean = 30

Let X be a Normal random variable with mean = 30 and variance = 25. Which of the following is a Standard Normal random variable? X-30725 (X-3075 (X-307625 (X-9007/25 X1 is Normally distributed with mean = 20 and standard deviation = 6; X2 is Normally distributed with mean = 30 and standard deviation = 8. Let Y = X1 + X2. Which of the following statements is correct about the distribution of Y? Normal with mean = 50 and standard deviation = 10 Binomial with mean = 50 and standard deviation = 10 Normal with mean = 50 and standard deviation = 14 Normal with mean = 50 and standard deviation = 100 Let X be a Normal random variable with mean = 5 and variance = 9. Let Z be the Standard Normal random variable. In original units if x = 11, then in the standardized units z = ? 02 ONN

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