1) Given that the relationship between GPA and IQ is stronger in high school tha
ID: 3135146 • Letter: 1
Question
1) Given that the relationship between GPA and IQ is stronger in high school than in college, the dot cluster for high school (compared to that for college) should
a) less closely approximate a straight line.
b) more closely approximate a straight line.
c) define a straight line.
d) lack any apparent tilt.
2) You're told that, for a large group of students, an r of .23 describes the relationship between anxiety score and time to complete a problemsolving task. This implies that there probably is
a) a slight tendency for more anxious students to be slower problem solvers.
b) a slight tendency for more anxious students to be faster problem solvers.
c) little or no relationship between anxiety and speed of problem solving.
d) a very strong relationship between anxiety and speed of problem solving.
Explanation / Answer
Solution:
(1) scatter plot gives direction form and strength of relationship.
relationship between GPA and IQ is stronger in high school than in college, the dot cluster for high school (compared to that for college) should
more closely approximate a straight line.
Solution2:
when r is positive linear relationship exists between 2 variables.
when r=0.23
as the coefff is less moderate positive relationship exists.
that is a nxiety score increasesand time to complete a problemsolving task also increases.
Implies:
b) a slight tendency for more anxious students to be faster problem solvers.
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