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Stem-and-Leaf Plot and Scatter Plot
By: Mr. Menjivar
Stem-and-Leaf Plot & Scatter Plot
15R15L
09/27/11Stem-and-Leaf Plot &Scatter Plot Reflection
09/27/11Observe,Question,Comment
Warm-Up:
What is the difference between the median number of turkey sandwiches sold and the median number of ham sandwiches sold?
A. 0
B. 1
C. 2
D. 3
Warm-Up
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
09/27/1109/27/11
Content StandardsStatistics Data Analysis and Probability 1.1 Know various forms of display for data sets
Statistics, Data Analysis, and Probability 1.2 Informally describe how the data points are distributed and any apparent relationship that exists between the two variables
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
Objective:
09/27/1109/27/11
Objective:
To interpret scatter plots To use scatter plots to find trends To make stem-and-leaf plots
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
Objective:
Vocabulary:
09/27/1109/27/11
Vocabulary:Stem-and-Leaf Plot
The graph displays numerical data arrange in order. Each data item is broken into a stem and a
leaf.
Vocabulary:Scatter Plot
A graph that shows the relationship between two sets of data.
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
Objective:
Vocabulary:
Notes/Examples:
09/27/1109/27/11
Example 1Making Stem-and-Leaf Plots
Make a stem-and-leaf plot for the data51, 56, 67, 44, 50, 63, 65, 58, 49, 51, 66, 59, 63, 47
Step 1: Choose the stems. What is the least value?
What is the greatest value?
What are the stems?
Example1[continued…]Step 2: Draw the stem-and-leaf plot
Example 2
Below are the monthly high temperatures for Death Valley California.
Make a stem-and-leaf plot for the data.87, 91, 101, 111, 120, 125, 134, 126, 120, 113, 97, 86
Let’s Look At Page 630
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
Objective:
Vocabulary:
Notes/Examples:
Practice:
09/27/1109/27/11
PracticeAs the distance from school increases, what happens to the amount of time it takes to get to school?
PracticeIs there a positive correlation, a negative correlation, or no correlation between the distance?
PracticeExplain what the point (0.5, 10) represents.
PracticeHow many students take longer than 35 min. to get to school?
Stem-and-Leaf Plot & Scatter Plot
15R15L
Stem-and-Leaf Plot &Scatter Plot Reflection
Observe,Question,Comment
Warm-Up: Standard:
Objective:
Vocabulary:
Notes/Examples:
Practice:
Independent Practice:
09/27/1109/27/11
Independent Practice
Make a stem-and-leaf plot of each data set.
1) 54, 48, 52, 53, 67, 61, 68, 49, 40, 50, 69, 73, 74, 76, 78
2) 124, 129, 131, 116, 138, 107, 105, 116, 122, 137, 138, 134
Stem-and-Leaf Plot & Scatter Plot
15R15L
09/26/11Stem-and-Leaf Plot &Scatter Plot Reflection
09/26/11Observe,Question,Comment
Warm-Up: Standard:
Objective:
Vocabulary:
Notes/Examples:
Practice:
Independent Practice:
Homework:
Homework Workbook Pg. 487 [1-6]
[Due: Next Meeting]
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