Question: Basic In Exercises 4.57 through 4.63, let z be a random variable with a standard normal distribution. 4.57 Find the probability that z is

Basic In Exercises 4.57 through 4.63, let z be a random variable with a standard normal distribution. 4.57 Find the probability that z is less than 1.23. Basic Basic Basic 4.58 Find the probability that z is greater than 0.35. 4.59 4.60 Find the value of z, denoted zo, such that P(z < 20) = .5. Find the value of z, denoted zo, such that P(z > zo) .025.

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