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For some value of Z, the probability that a standard normal variable is above Z is 0.2090. The value of Z is a.0.31 b.0.81 c.0.31

For some value of Z, the probability that a standard normal variable is above Z is 0.2090. The value of Z is

a.0.31

b.0.81

c.0.31

d.1.96

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