When the range of a unimodal distribution equals approximately 6 times the
standard deviation, then the curve is most likely to be
a. skewed
b. leptokurtic
c. platykurtic
d. mesokurtic
d
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Which of the following statements regarding adolescent contraceptive use is FALSE?
A) Some teens believe that they do not need contraceptives if they do not have sex frequently. B) Most teens report that they know where to get contraceptives and that they are easily available. C) The best predictor of contraceptive use is age—older teens are more likely to use contraception. D) Some teens do not use contraception because they are afraid that their parents will find out.
Kay has difficulty sleeping. She awakes partially, has confusion, and disorientation. Kay sits up abruptly and screams and is unresponsive to effort to awaken her. Kay has:
a) sleep terror disorder b) sleep apnea c) narcolepsy c) insomnia