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Given that z is a standard normal random variable, compute the following probabilities. a. P (-1.52 z 0.72) b . P (.68 z 1.12) c.

Given that zis a standard normal random variable, compute the following probabilities.

a. P(-1.52 z 0.72)

b. P(.68 z 1.12)

c. P(-1.54 z - 0.87)

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