Identifying regions under the normal curve

What is the area under the standard normal curve to the left of the mean?

• 0

• 0.25

• 0.5

• 1

What is the area under the standard normal curve to the right of the mean?

• 0

• 0.25

• 0.5

• 1

What is the total area under the normal curve in a standard normal distribution?

• 0.5

• 1

• 2

• 3

A z-score tells you...

• he standard deviation of a sampling distribution.

• the original raw score on which it is based.

• if the distribution it comes from is normal.

• how many standard deviations away from the mean a score lies.

Find the area of the shaded region if the z-score is 0.75

• 0.2266

• 
  0.7734

• 0.758

• 0.242

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

• 
  0.0869

• 0.9962

• 0.9962

• 0.1234

Find the area under the normal distribution curve between a z=-1.26 and z=.57. 

• 0.0047

• 0.9204

• 0.6119

• 0.4981

Find the area under the normal distribution curve between z=-1.53 and z=0.

• 0.437

• 0.563

• 0.500

• 0.063

This data is normally distributed.  What percent of the data is in the shaded region?

• 
  68%

• 94%

• 50%

• 100%

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%

• 
  95%

• 99.7%

• 50%