3. Given that µ = 5 and o = 2.8, the z-score for x = 6.6 is: a. 0.89 b. 0.98 C. 0.57 d. - 2.1 4. Given that the z-score for a piece of data is – 1.57, P(z <— 1.57) is: a. 0.0582 b. 0.0708 C. 0.0475 d. 0.0571

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