AQR Assignment 1/8
No Cause & Effect
Yes Cause & Effect
Not enough Info
What are the 3 things we're concerned with when
dealing with scatterplots?
Does there appear to be an outlier in this data?
If so, what is the point where it is located?
Does there appear to be an outlier for this data?
outlier Yes/No
location
cluster around a bestfit line?
What determines how closely a points in a scatterplot
line of best fit
correlation association
correlation coefficient
none of these
scatterplot?
The correlation coefficient is identified by "r" using  the
calculator.  If r = 0, what does that tell you about the
there is a positive relation
there is a negative relation
There is no relation
There is a strong relation
coefficient will fall into?
What is the range of values that the correlation
Hint: your answer must begin with "between __ and __"
        also, make sure the smallest number is listed 1st
pair of variables below: positive, negative or zero.
Describe a type correlation you might expect for each
"Average hours spent watching TV per night and grade
point average."
pair of variables below: positive, negative or zero.
Describe a type correlation you might expect for each
"Speed of a car and distance traveled to a complete
stop after brakes are applied."
What is the correlation coefficient between the two
variables x and y: positive, negative or zero?
Find the correlation coefficient between the two
variables x and y.
Hint:  round to 3 decimal places
and include 0 before the decimal
if it exists.
r =
Find the correlation coefficient between the two
variables x and y.
Hint:  round to 3 decimal places
and include 0 before the decimal
if it exists.
r =
outlier Yes/No
Is there an outlier is the data set provided?

If so, name the point where the outlier is located.
Hint: put ( , ) for the point, if it exists
point
What is the correlation coefficient between the two
variables x and y: positive, negative or zero?
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