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Z is a standard normal variable. Find the value of Z in the following (show your works) a.The area to the left of Z is

Z is a standard normal variable. Find the value of Z in the following (show your works)

a.The area to the left of Z is 0.9279.

b.The area to the right of -Z is 0.9834.

c.The area between -Z and Z is 0.7108.

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