Normal Probability Curve

What proportion of the standard normal curve falls above a z-score of 1.33?

• 0.9082

• 0.0918

• 0.1093

• 0.8907

Find the area under the standard normal curve to the right of z = -2.67.

• 0.0869

• 0.9962

• 0.0008

• 0.1234

Find the area under the normal distribution curve between a z= -1.26 and z= 0.57.

• 0.0047

• 0.9204

• 0.6119

• 0.4981

The average waist size for teenage males is 29 inches with a standard deviation of 1.4 inches. If waist sizes are normally distributed, what is the probability of teenagers who will have waist sizes greater than 31 inches?

• 0.9236

• 0.1050

• 0.1600

• 0.0764

Find the area under the normal distribution curve to the left of

Z = 0.27.

• 0.3936

• 0.3897

• 0.6064

• 0.4892

Find the area under the normal distribution curve that represents the area to the left of Z =-2.37.

• 0.0089
• 0.9910
• 0.1401
• 0.1381

What is the area under the curve to the left of z = 0.55 ?

• .2912
• .5500
• .9394
• .7088

What is the area under the curve to the right of z = .25, the white part of the curve?

• .5987
• .4013
• .9938
• .0062

What is the area under the curve between z = 0 and z = 1.45?

• .9265
• .4265
• .4500
• .5000

What is the area under the curve between z = 1 and z = 0 ?

• .68
• .34
• 1
• .8413