1.
Consider the scatter plot below. Which statement is
not
true about this scatter plot?
A.
There appears to be a positive relationship.
B.
There appears to be a negative relationship.
C.
If a line was drawn approximately through the points on the scatter plot, the line would have a positive slope.
D.
As the values of
x
increase, the values of
y
increase.
Hint
2.
Refer to the scatter plot below. Students were surveyed to find the number of minutes of TV watched per day and the number of minutes of exercise they engaged in per day. Which statement cannot be supported by the scatter plot?
A.
Some students exercised for more than 80 minutes per day.
B.
As students watch more TV, they exercise less.
C.
Students who watch a lot of TV score poorly on tests.
D.
There is a negative relationship between minutes of TV watched and minutes of exercise.
Hint
3.
Which situation would result in a scatter plot that shows no relationship?
A.
size of house and value
B.
length of automobile trip and gasoline consumed by vehicle
C.
age and taxes paid over lifetime
D.
age of the head of the household and last digit of phone number
Hint
4.
The scatter plot shows the relationship between number of weekly meals at fast food restaurants and blood cholesterol level for 25 adults in a correlational study. Determine whether the scatter plot shows a
positive
relationship,
negative
relationship, or
no
relationship.
A.
cannot be determined
B.
no relationship
C.
positive relationship
D.
negative relationship
Hint
5.
The scatter plot shows the relationship between number of weekly meals at fast food restaurants and blood cholesterol level for 25 adults in a correlational study. Describe the independent and dependent variables of the graph and what the graph indicates.
A.
The independent variable is the number of meals per week at a fast food restaurant. The dependent variable is blood cholesterol level. In the study, people who ate more often at fast food restaurants generally had higher blood cholesterol levels.
B.
The independent variable is blood cholesterol level. The dependent variable is the number of meals per week at a fast food restaurant. In the study, people who ate more often at fast food restaurants generally had lower blood cholesterol levels.
C.
The independent variable is the number of meals per week at a fast food restaurant. The dependent variable is blood cholesterol level. In the study, people who ate more often at fast food restaurants generally had lower blood cholesterol levels.
D.
The independent variable is blood cholesterol level. The dependent variable is the number of meals per week at a fast food restaurant. In the study, people who ate more often at fast food restaurants generally had higher blood cholesterol levels.
Hint