Question

Step 1

**a.**

The area to the left of *z* is 0.209 can be written as P(*Z < z*)=0.209.

In the *z*-table for negative values of *z*, the *z*-value corresponding to the nearest probability of 0.209 is -0.81.

**Answer: -0.81**

** **

**b.**

The area between –*z* and *z* is 0.903 can be written as P(*-z <Z <z*) = 0.903.

Step 2

**c.**

The area between –*z* and *z* is 0.2206 can be written as P(*-...*

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