All bell-shaped curves _________.
a. are normal curves c. are symmetrical
b. have means = 0 d. a and c
Question 2
A distribution of raw scores is positively skewed. You want to transform it so that it is normally distributed. Your friend, who fancies herself a statistics whiz, advises you to transform the raw scores to z scores; that the z scores will be normally distributed. You should _________.
a. ignore the advice because your friend flunked her last statistics test
b. ignore the advice because z distributions have the same shape as the raw scores.
c. take the advice because z distributions are always normally distributed
d. take the advice because z distributions are usually normally distributed
Features of normal metaphase chromosomes.
Tonsils—normal and enlarged.
Normal female karyotype
Pediatric Vital Signs Normal Ranges
Cumulative Standard Normal Distribution
Illustration of the anatomy of a normal subject (A) and a patient with sleep apnea (B)