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Find the following *z* values for the standard normal variable *Z*. **(You may find it useful to reference the **z table**.** **Negative values should be indicated by a minus sign. Round your answers to 2 decimal places.)**

ind the following $z$ values for the standard normal variable $Z$. (You may find it useful to reference the $z$ table. Negative values hould be indicated by a minus sign. Round your answers to 2 decimal places.)

Solution : ( a ) P(Z?z)=0.9744 P(Z?1.95)=0.974