Question

Using the TI-84 calculator, find the area under the standard normal curve that lies outside the interval between the following

z

-values. Round the answers to four decimal places.

(a) Find the area under the standard normal curve that lies outside of the interval between

=z−1.92

and

=z1.09

.

(b) Find the area under the standard normal curve that lies outside of the interval between

=z−2.32

and

=z1.58

.

(c) Find the area under the standard normal curve that lies outside of the interval between

=z1.56

and

=z1.98

.

(d) Find the area under the standard normal curve that lies outside of the interval between

=z−1.98

and

=z−1.28

.

Answer 1

Solution :

Using Ti-84 calculator,

(a)

area = 0.1653

(b)

area = 0.0672

(c)

area = 0.9645

(d)

area = 0.9236