If a straight line passes through the point x = 12 and y = 4 and also through the point x = 4 and y = 8, the slope of this line is
A) negative 8 divided by 4.
B) seven tenths.
C) negative one half.
D) one -and one half.
Answer: C
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The college textbooks market is an example of
A) perfect competition. B) oligopoly. C) monopoly. D) monopolistic competition.
Most prophecies of the imminent exhaustion of many natural resources have not come true because
a. such resources are generally available in infinite quantities. b. rising prices for resources have stimulated supply and encouraged innovation. c. the demand for most natural resources has fallen as income levels have increased. d. government price floors have prevented resource exhaustion.
The strengths of the British National Health Service (NHS) include:
a. the fact that there is a surplus of clinicians, so there is little need for foreign-trained physicians and nurses to practice in Britain. b. the fact that no one has the ability to jump to the top of the slow-moving waiting list for medical treatment. c. the fact that patients have access to all medically necessary care regardless of cost. d. good access to primary and preventive care. e. the fact that there are no differences in access to medical care based on socioeconomic status or geographic location.
?The likelihood ratio statistic is nonnegative.
Answer the following statement true (T) or false (F)