A sample of n = 4 scores has ?X = 8 and ?X2 = 40. What is the value of the sample variance, s2?
A) ?2
B) ?4
C) ?8
D) ?10
C
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Different cultures foster different belief systems
a) True b) False
Grandpa Frank is often confused and doesn't know where he is much of the time. You visit him, but he doesn't seem to recognize you. He has gotten much worse over the past few years. The doctor says that there is no cure and that a protein which is destroying brain cells is the suspected cause. Grandpa Frank has been diagnosed with:
A. Alzheimer's disease B. Parkinson's disease C. Stroke D. Fragile X syndrome
Mark received a call on his cell phone from his mother, but the reception was so poor and there was so much noise from the street that he had trouble making out her words. Even without knowing exactly what she was saying, however, he knew she was sad from her tone of voice. What can we infer from this information? a. Mark is unusually sensitive to people's moods. Most people cannot interpret
emotions very well over the phone. b. Mark is probably mistaken about his mother's mood. c. It is likely that Mark was holding his cell phone up to his left ear. d. It is likely that Mark was holding his cell phone up to his right ear.
When Aida's mother left her with a new babysitter, Aida was not upset. When her mother returned, Aida ignored her. Aida appears to have a(n) __________ attachment to her mother
a. resistant c. avoidant b. disorganized (disoriented) d. secure