What is the following used to calculate: (number of rows - 1) (number of columns - 1)?
a. Expected cell value
b. Correlation coefficient
c. Effect size
d. Degrees of freedom
Ans: d. Degrees of freedom
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Which of the following is the best definition of a gene?
a. an individual's set of observable characteristics b. a hereditary unit made of DNA that occupies a fixed location on a chromosome c. a molecule that encodes genetic information d. a sequence of three bases on the DNA molecule that encode one of twenty amino acids
Which of the following can be categorized as belonging to the same concept as "mineral"?
a. magazine c. rock b. newspaper d. cell
In most cases, injection of dexamethasone
A. suppresses cortisol release in healthy controls but not in patients with depression. B. suppresses cortisol release in patients with depression but not in healthy controls. C. increases cortisol release in healthy controls but not in patients with depression. D. increases cortisol release in patients with depression but not in healthy controls.
About one out of ________ adolescents contracts an STI before graduating from high school
A) three B) five C) four D) two