When the array of points on a scatter plot slopes from lower left to upper
right, then
a. the correlation is positive
b. the correlation is negative
c. there is no correlation
d. no predictions can be made
a
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Research on severely deprived children who are adopted before 6 months of age tends to show what?
A. The children usually catch up if the home environment is supportive, but it often takes more than a year. B. The children seldom catch up socially or academically C. The children exhibit a high accident and death rate. D. The children usually catch up within a year if the home environment is supportive.
The probability of rolling a 6 on the first roll with a standard die is independent of the probability of rolling a 6 on the second roll
Indicate whether the statement is true or false
Hanna is a 70-year-old woman who has a choice: she can either go out with some old friends or make some new friends at the community center. Socioemotional selectivity theory would predict that if Hanna's decision is based on emotional regulation, she will a. choose to make new friends
b. go out with her old friends. c. stay home and see no one. d. invite her old friends to the community center so that they can all make new friends.
The expected value model has or implies four elements. Which is not one of
them? (a) options for action (b) what might happen (c) how likely are the various states of the world (d) how much you think you would like each of the outcomes (e) how important the decision is