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1). A random variable X has a normal distribution with mean 132 and variance 36. If...

1). A random variable X has a normal distribution with mean 132 and variance 36. If x = 120, its corresponding value of Z is?

2).Fill the blank. In the standard normal distribution, z0.05 = 1.645 means that 95% of all values of z are below ____ and ____% are above it.

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