Boxplots
Residuals
Frequency Tables
Types of Graphs
Mean, Median, Mode, Range, Deviation
100
What is the median and range?
Median=9. Range=10.
100
Which is the better line of best fit? Why?
Left image. Matches the trend of the points.
100
How many people have no food and no drink.
10 people
100
Write a list of numbers from this stem-and-leaf plot.
14, 21, 27, 29, 33, 36, 42
100
What is the outlier?
2, 3, 4, 4, 6, 27, 7, 8
27
200
How much of the data is in between the 3rd Quartile and the maximum?
25%
200
Does this graph have positive, negative, or no correlation?
Negative
200
How many people ordered pizza and soda?
120 people
200
Is the histogram left skewed, right skewed, or symmetric?
Right Skewed
200
What is the range?
5, 8, 19, 3, 24, 15, 16, 16, 28
28-3=25
300
Left skewed, right skewed, or symmetrical? 
Right skewed
300
What is the residual when x=6?
+3
300
How many total people ordered pizza?
182 people
300
Is this dot plot unimodal or bimodal?
Is it left skewed, right skewed, or symmetrical?
Bimodal (has two peaks). Symmetrical.
300
Find the median.
2, 6, 8, 21, 17, 3
In between 6 and 8; so it is 7.
(6+8)/2=7
400
What is the 5-number summary?
Minimum, Maximum, Median, Upper Quartile, Lower Quartile
400
What is the residual when x=4?
-2
400
What is the percent chance that someone orders pizza and no drink?
4/400=0.01=1%
400
Which graph is a bar graph and which is a histogram? What are the differences?
Left is a bar graph (has categories and the bars are spaced out. Right is a histogram (has # frequencies and the bars are not spaced out.)
400
What is the mode? Can there be more than one mode?
Number that appears the most. There can be more than one.
500
What does IQR stand for? How much of the data does it contain?
Interquartile range=box=middle 50% of the data.
500
Correlation coefficient shows the strength of a relationship.
The scale ranges from _____________.
1 to -1.
500
What is the percent chance that someone orders water? 
140/400=0.35=35%
500
Which line has a higher standard deviation? 
Orange. More spread out.
500
Find the mean.
2, 3, 5, 7, 8, 8, 9
2+3+5+7+8+8+9 = 42รท7= 6