Let p = “Mary got an A on her exam” and q = “John got a C on his exam.” In which of the following situations is the statement “p ? q” true?
a. Mary and John both got As.
b. Mary and John both got Cs.
c. Mary got an A and John got a C.
d. all of these
d. all of these
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Research on speed-reading courses indicates that
A) comprehension suffers as reading speed increases. B) comprehension is not negatively impacted. C) speed is completely unrelated to comprehension. D) the faster we read, the better able we are to retain attention to the text.
Which of the following absolute thresholds for taste is correct?
a. Detecting a gram of salt dissolved in five gallons of water b. Detecting a difference in tastes between two spots on the tongue, one-eighth of an inch apart c. Detecting one teaspoon of sugar dissolved in two gallons of water d. Detecting a teaspoon of vinegar mixed in with two gallons of water e. Detecting the sweetness of a fruit while blindfolded