A negative correlation means that as one variable increases the other
a. increases.
b. decreases.
c. remains constant.
d. increases then decreases.
ANSWER: b
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Which of the following best describes the principle of natural selection?
a. A species constantly improves as parents pass along their best traits to their offspring. b. Over time, the amino acids producing defective traits are destroyed by the body. c. Individuals with genetically influenced traits that are adaptive in a particular environment tend to survive and reproduce. d. If a trait or characteristic is no longer adaptive, then the environment will create better, more adaptive traits.
____________________ are used to infer how likely it is that that the difference between data samples is due to chance rather than due to a real difference in populations
Fill in the blank(s) with correct word