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
Sickled and normal red blood cells
Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra
Density of Papillae, and Hence Taste Buds, in a Supertaster and in a Normal Taster
Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies.
Mendel’s Peas Are Shaped by Transposition
Illustration of the anatomy of a normal subject (A) and a patient with sleep apnea (B)