In order to compute a correlation coefficient between traits A and B, it is necessary to have:
a. one group of subjects, some of whom possess characteristics of trait A, the remainder possessing those of trait B.
b. measures of trait A on one group of subjects and of trait B on another.
c. one group of subjects, some of whom have both A and B, some have neither, and some have one but not the other.
d. two groups of subjects, one which could be classified as A or not A, the other as B or not B.
e. measure of traits A and B on each subject in one group.
Question 2
Which of the following is a bivariate distribution?
a. Incomes of Denver teachers
b. Reading test scores of 50 children taught by the phonics method
c. Nursing license examination results for only male candidates
d. Home-economics aptitude test scores of this year's freshmen
e. Number of arrests made and years of experience of San Francisco policemen
Traits and trees
Homologous and analogous traits
Afterload is the pressure that the ventricles must overcome in order to open the aortic and pulmonic
The phenotypic distribution in a cross with two traits: seed color and seed shape. Plants in the F2
Some human traits controlled by a single gene
The seven dichotomous traits of Pisum sativum