The arrows can only be dragged tozscores that are accurate to 1 place after the decimal point (these values correspond to the tick marks on the horizontal axis). Round all probabilities to at least three decimal places.

(a) Sketch the region corresponding to the statementP

(

z

>

1.8

)

P(z>1.8)

.

Shade:Left of a value

Right of a value

Between two values

2 regions

. Click and drag the arrows to adjust the values.

-1.5

(b) Evaluate:P

(

z

>

1.8

)

P(z>1.8)

=

(c) Sketch the region corresponding to the statementP

(

1.3

<

z

<

0.8

)

P(-1.3

.

Shade:Left of a value

Right of a value

Between two values

2 regions

. Click and drag the arrows to adjust the values.

-1.5

(d) Evaluate:P

(

1.3

<

z

<

0.8

)

P(-1.3

=