Question: Find the following probabilities based on the standard normal variable Z. a. P(0.67 Z 0.23) b. P(0 Z 1.96) c. P(1.28

Find the following probabilities based on the standard normal variable Z.

a. P(−0.67 ≤ Z ≤ −0.23)

b. P(0 ≤ Z ≤ 1.96)

c. P(−1.28 ≤ Z ≤ 0)

d. P(Z > 4.2)

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