Score for this attempt: 11 out of 12.5
Question 1
0..5 pts
Looking at the graph below, approximately what was the median success score for the
nicotine group?
-5.00
Correct!
1.00
2.00
-1.00
,Question 2
0..5 pts
What does a histogram show?
A histogram is a graph in which levels of the independent variable are plotted on the
horizontal axis, and the mean of observations is plotted on the vertical axis.
A histogram is a graph in which values of one variable are plotted against values of a
different variable.
A histogram is a graph in which values of observations are plotted on the horizontal
axis, and their density is plotted on the vertical axis.
Correct!
A histogram is a graph in which values of observations are plotted on the horizontal
axis, and the frequency with which each value occurs in the data set is plotted on the
vertical axis.
Question 3
0..5 pts
What can we say about the graph below?
, Correct!
There is a positive relationship between the number of cigarettes smoked per day
before the intervention and the number of cigarettes smoked after the intervention.
There is a negative relationship between the number of cigarettes smoked per day
before the intervention and the number of cigarettes smoked after the intervention.
There is no relationship between the two variables.
The participants who smoked the most cigarettes per day before the intervention
smoked the fewest cigarettes per day after the intervention.
Question 4
0..5 pts
Approximately what is the mean success score for those who wanted to quit in the
hypnosis group?
Question 1
0..5 pts
Looking at the graph below, approximately what was the median success score for the
nicotine group?
-5.00
Correct!
1.00
2.00
-1.00
,Question 2
0..5 pts
What does a histogram show?
A histogram is a graph in which levels of the independent variable are plotted on the
horizontal axis, and the mean of observations is plotted on the vertical axis.
A histogram is a graph in which values of one variable are plotted against values of a
different variable.
A histogram is a graph in which values of observations are plotted on the horizontal
axis, and their density is plotted on the vertical axis.
Correct!
A histogram is a graph in which values of observations are plotted on the horizontal
axis, and the frequency with which each value occurs in the data set is plotted on the
vertical axis.
Question 3
0..5 pts
What can we say about the graph below?
, Correct!
There is a positive relationship between the number of cigarettes smoked per day
before the intervention and the number of cigarettes smoked after the intervention.
There is a negative relationship between the number of cigarettes smoked per day
before the intervention and the number of cigarettes smoked after the intervention.
There is no relationship between the two variables.
The participants who smoked the most cigarettes per day before the intervention
smoked the fewest cigarettes per day after the intervention.
Question 4
0..5 pts
Approximately what is the mean success score for those who wanted to quit in the
hypnosis group?
