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SECTION 1-3Histograms and Stem-and-Leaf Plots
Essential QuestionsHow do you use and create histograms to solve problems?
How do you use and create stem-and-leaf plots to solve problems?
Where you’ll see this:
Education, statistics, inventory, sports, entertainment
Vocabulary1. Frequency:
2. Histogram:
3. Stem-and-leaf Plot:
4. Outliers:
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram:
3. Stem-and-leaf Plot:
4. Outliers:
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot:
4. Outliers:
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot: The leaf is the right-most digit in the number, and the stem is the other digits;
4. Outliers:
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot: The leaf is the right-most digit in the number, and the stem is the other digits; The stem is on one side of a bar and the leaves on the other
4. Outliers:
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot: The leaf is the right-most digit in the number, and the stem is the other digits; The stem is on one side of a bar and the leaves on the other
4. Outliers: Values that are much larger or smaller than the rest
5. Clusters:
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot: The leaf is the right-most digit in the number, and the stem is the other digits; The stem is on one side of a bar and the leaves on the other
4. Outliers: Values that are much larger or smaller than the rest
5. Clusters: Groups of values that are not close to the rest of the data
6. Gaps:
Vocabulary1. Frequency: Shows the number of times a number appears or
numbers in an interval appear
2. Histogram: A bar graph with no space between the bars
3. Stem-and-leaf Plot: The leaf is the right-most digit in the number, and the stem is the other digits; The stem is on one side of a bar and the leaves on the other
4. Outliers: Values that are much larger or smaller than the rest
5. Clusters: Groups of values that are not close to the rest of the data
6. Gaps: Large spaces between values
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Which interval has the most scores? The least?
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Which interval has the most scores? The least?
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Score 1-7 8-14 15-21 22-28 29-35 36-42 43-49 50-56
Freq. 1 4 3 6 3 0 5 2
Which interval has the most scores? The least?
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Score 1-7 8-14 15-21 22-28 29-35 36-42 43-49 50-56
Freq. 1 4 3 6 3 0 5 2
Which interval has the most scores? The least?
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Score 1-7 8-14 15-21 22-28 29-35 36-42 43-49 50-56
Freq. 1 4 3 6 3 0 5 2
Which interval has the most scores? The least?
Most: 22-28
Organizing Data13 25 43 50 23 33 31 24 54 11 3 26
46 43 23 45 14 19 29 21 25 43 12 15
Score 1-7 8-14 15-21 22-28 29-35 36-42 43-49 50-56
Freq. 1 4 3 6 3 0 5 2
Which interval has the most scores? The least?
Most: 22-28 Least: 36-42
Histograms on the TI-83/84
Histograms on the TI-83/84
Histograms on the TI-83/84
Histograms on the TI-83/84
Histograms on the TI-83/84
Histograms on the TI-83/84
Histograms on the TI-83/84
Stem-and-Leaf
Stem-and-Leaf
Stem-and-Leaf
Stem-and-Leaf
Stem-and-Leaf
Stem-and-Leaf
012345
Stem-and-Leaf
012345
3
Stem-and-Leaf
012345
31 2 3 4 5 9
Stem-and-Leaf
012345
31 2 3 4 5 91 3 3 4 5 5 6 9
Stem-and-Leaf
012345
31 2 3 4 5 91 3 3 4 5 5 6 91 3
Stem-and-Leaf
012345
31 2 3 4 5 91 3 3 4 5 5 6 91 33 3 3 5 6
Stem-and-Leaf
012345
31 2 3 4 5 91 3 3 4 5 5 6 91 33 3 3 5 60 4
Stem-and-Leaf
012345
31 2 3 4 5 91 3 3 4 5 5 6 91 33 3 3 5 60 4
*Key: 4 2 = 42
Answer on Your Own
1. What is the difference between a histogram and a bar graph?
2. What would be the stem and leaf of the following number: 45.3
Problem Set
Problem Set
p. 18 #1-25
“The secret of success in life is for a man to be ready for his opportunity when it comes.” - Earl of Beaconsfield
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