Select True or False from each pull-down menu,

Select True or False from each pull-down menu, depending on whether the corresponding statement is true or false.

? 1. Using the standard normal curve, the z−score repre- senting the 10th percentile is 1.28.

? 2. A random variable X is normally distributed with a mean of 150 and a variance of 36. Given that X = 120, its corresponding z− score is 5.0

? 3. The mean and standard deviation of an exponential ran- dom variable are equal to each other.

? 4. The mean and standard deviation of a normally dis- tributed random variable which has been standardized are one and zero, respectively.

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