Given that on one section of the SAT the mean is 500 and the standard deviation is 100, what is the approximate probability of selecting a student whose score is 400 or lower followed by selecting a student whose score is 500 or higher on the test?
a. 0.005
b. 0.022
c. 0.045
d. 0.08
d
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Values are innate rather than socially created
Indicate whether the statement is true or false
Researchers measured children's fear of unfamiliar situations at 21 months and again at four years of age. When the children were brought back to the laboratory at five and a half years, the researchers found
A. that children who were inhibited earlier displayed more risky behavior when playing a ball-tossing game. B. that children who were inhibited earlier displayed more risky behavior when playing on a mattress in a falling game. C. that children who were inhibited at 21 months and four years again clung to their mother or father as before. D. that children who were uninhibited at 21 months and four years began to cling to their mother or father at five and a half years.
Viagra and other erectile dysfunction medications usually act by enhancing the activity of a. substance P
b. oxytocin. c. nitric oxide (NO). d. CCK.
It is possible to have an action potential that is relatively small in magnitude (if few channels are open)
Indicate whether the statement is true or false