more graphs and displays. stem-and-leaf plots each number is separated into a stem and leaf...
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![Page 1: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/1.jpg)
More Graphs and Displays
![Page 2: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/2.jpg)
Stem-and-Leaf PlotsEach number is separated into a
STEM and LEAF component. The STEM is the leftmost digit(s).The LEAF is the rightmost digit.It’s important to include a key to
identify values. For example… Key: 15 | 5 = 155
![Page 3: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/3.jpg)
Use the stem-and-leaf plot to list the actual data entries.
![Page 4: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/4.jpg)
Make a stem-and-leaf plot:Ages of the top 30 highest paid CEOs
(Forbes Magazine).
64 74 55 55 62 63
50 67 51 59 50 52
50 59 62 64 57 61
49 63 62 60 55 56
48 58 64 60 60 57
![Page 5: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/5.jpg)
Pie Chart (for Qualitative Data)A circle divided into sectors that
represent categories. The area of each sector is proportional to
the frequency of the category.
Find RELATIVE Frequency and multiply by 360o to get the central angle for each category.
![Page 6: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/6.jpg)
Use a Pie Chart to display data2010 NASA budget request (in millions
of dollars)
Science, aeronautics, exploration
8947
Space Operations 6176
Education 126
Cross-agency support 3401
Inspector general 36
![Page 7: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/7.jpg)
Pareto Chart (for Qualitative Data)Vertical bar graph in which the height of
each bar represents the frequency or relative frequency.
Bars are positioned in order of decreasing height, left to right.
EX: Make a Pareto chartUltraviolet indices for 5 cities at noon:
Atlanta
Boise
Concord
Denver
Miami
9 7 8 7 10
![Page 8: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/8.jpg)
Scatter Plot (for Paired Data Sets)Paired data Ordered pairs. Plot on a coordinate plane.Independent variable on the x-axis.
![Page 9: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/9.jpg)
EX: make a scatter plot:# of students per teacher
Avg teacher’s salary (in thousands$)
17.1 28.7
17.5 47.5
18.9 31.8
17.1 28.1
20.0 40.3
18.3 33.8
14.4 49.8
16.5 37.5
13.3 42.5
18.4 31.9
![Page 10: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/10.jpg)
Measures of Central Tendency
![Page 11: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/11.jpg)
Measure of Central Tendency:A value that represents a typical, or
central, entry of a data set. 3 most common are MEAN, MEDIAN,
and MODE
![Page 12: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/12.jpg)
MEAN: sum of the data entries divided by n
![Page 13: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/13.jpg)
MEDIANThe data entry in the MIDDLE.
List data from least to greatest.Find the middle value.(For even n, find the average of the 2
middle values)
![Page 14: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/14.jpg)
MODEData entry that occurs MOST often
(highest frequency)
A data set may have no mode or have more than mode.
BIMODAL = 2 modes.
![Page 15: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/15.jpg)
EX: Find mean, median, and mode for the data set.
![Page 16: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/16.jpg)
Weighted MEAN: data values have different
weights.
![Page 17: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/17.jpg)
EX: find the weighted mean
![Page 18: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/18.jpg)
Mean of a Frequency Distribution
![Page 19: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/19.jpg)
EX: Find the mean
![Page 20: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/20.jpg)
Shapes of DistributionsDistributions may look ..
SymmetricUniformSkewed LeftSkewed Right
![Page 21: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/21.jpg)
Symmetric
![Page 22: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/22.jpg)
Uniform
![Page 23: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/23.jpg)
Skewed Left
![Page 24: More Graphs and Displays. Stem-and-Leaf Plots Each number is separated into a STEM and LEAF component. The STEM is the leftmost digit(s). The LEAF is](https://reader036.vdocuments.site/reader036/viewer/2022062309/56649ed15503460f94be0e02/html5/thumbnails/24.jpg)
Skewed Right