Find the following areas under the normal curve

A. -1.43
B. 0.58
C. -1.55
D. z> 1.34

2 find the standardized score (z-score) closest to the following percentiles

A. 35th percentile

B. First Quartile QI

C. The observation with 12% of the data falling above it


3. Given a normal distribution of heights of 5 year olds (in inches) with a mean of 36 and a standard deviation of 10, find the following areas under the curve:

A. x< 31 inches

B. x> 49 inches

C. 40
D. 70% of 5 year olds are below what height?