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Given a standard normal distribution, find the following probabilities: a. P(z < 1.15) b. P(z > 0.45) c. P(-1.9 < z < 0.4)

Given a standard normal distribution, find the following probabilities:

a. P(z < 1.15)

b. P(z > 0.45)

c. P(-1.9 < z < 0.4)

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