Dot Plots
How many people were surveyed for this data?
Image 1
15
Max 27 Min 13
What is the range?
14
Which age group as the most people?
Image 7
16-20
Where can you locate the minimum and maximum on a box plot?
The first and last point
Categorical or Numerical?
How many hours does it take you to do all of your homework?
Numerical
High or low variability?
Image 2
Low
Q3= 38 Q1=7
What is the IQR?
31
Which sport had the most students and how many did they have?
Image 8
Football and 36
Where can you find the median on a box plot?
The middle line of the box.
Statistical or not statistical?
What is the most popular TV show watched by 6th graders this week?
Statistical
What does the dot or X represent?
A data point
What is the range?
Image 4
7
How many people watched more than 2 movies?
Image 9
9
What percent of data is the IQR?
50%
12,5,10,35,61,6
The range is 6. True or false? Why?
False because the max is 61 and the min is 5 so 61-5= 56
What is the approximate center of this dot plot?
Image 3
1 or 2
Which group has higher variability?
Image 5
Group B
Approximately how many people scored higher then 80 on the test?
Image 10
about 60
How would you find the IQR by looking at the box plot?
Find Q3 which is the end of the box and subtract it from Q1 which is the start of the box
1,3,5,6,6,7,8,9,13,21,25
Find the five number summary.
Min 1
Max 25
Median 7
Q1 5
Q3 13
Create a dot plot for this data.
0,0,1,1,1,2,2,2,3,3,5,5,7,7,7,8,8,9,9
Teacher Check
Find the IQR and Range of Class B
Image 6
Range = 21
IQR = 14
Approximately how many people weighed 41kg or higher?
Image 11
About 40
Create a box plot with this data.
Min 1 Max 10 Median 5 Q1 3 Q3 7
Teacher Check
Find the mean.
4,5,7,9,10,11,12,15,17,20
11