Problem 2E

Find the area under the normal curve

a. To the left of z = 0.56.

b. Between z = -2.93 and z = ‒2.06.

c. Between z = ‒1.08 and z = 0.70.

d. Outside z = 0.96 to z = 1.62.

Solution :

Step 1 of 4:

Our goal is :

a). We need to find to the left of z=0.56.

b). We need to find between z=-2.93 and z=-2.06.

c). We need to find between z=-1.08 and z=0.70.

d). We need to find outside z=0.96 to z=1.62.

Now we have to find the area under normal curve.

a).

Given the area under standard normal curve to the left of z=0.56.

P(z<0.56)= P(z<0.56)

Using area under the normal curve table value.

P(z<0.56)= 0.7123

Therefore the area under standard normal curve to the left of z=0.56 is 0.7123.