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Bell Ringer
1) In class we are going to explore 7 different data displays. How many ways can we learn all 7?
2) List all 7 displays you think we will discuss:
Stem-and-Leaf Plot, Box-and-Whisker Plot, Scatter Plot, Line Graph, Circle Graph, Bar Graph, Histogram
Permutation: 7! =5,040 ways
Today’s Agenda
1) Bell Ringer/HW 2) Presidential Elections 3) Analyzing Stem & Leaf Plots and
Box & Whisker Plots 4) Team Huddle 5) Homework
Presidential Ages
How old was President Obama at his inauguration?
Collecting Data
Essential Question:How do you construct and analyze
a stem-and-leaf plot?
Ages At InaugurationPresident Age
Roosevelt 51
Truman 60
Eisenhower 62
Kennedy 43
Johnson 55
Nixon 56
Ford 61
Carter 52
Reagan 70
Bush, Sr. 64
Clinton 46
Bush, Jr. 54
Obama 47
Did You Know…
1) The youngest president ever was Teddy Roosevelt at 42. He assumed the position after McKinley’s assassination.
2) The youngest president ever elected into office was JFK at 43.
Make a Stem-and-Leaf PlotPresident Age
Roosevelt 51
Truman 60
Eisenhower 62
Kennedy 43
Johnson 55
Nixon 56
Ford 61
Carter 52
Reagan 70
Bush, Sr. 64
Clinton 46
Bush, Jr. 54
Obama 47
Collecting Data
Essential Question:How do you construct and analyze
a box-and-whisker plot?
Box-and-Whisker Plots
Shows how data are distributed by using a five-number summary:
1. minimum value
2. lower quartile (Q1)
3. median (Q2)
4. upper quartile (Q3)
5. maximum value
Make a Box-and-Whisker PlotPresident Age
Roosevelt 51
Truman 60
Eisenhower 62
Kennedy 43
Johnson 55
Nixon 56
Ford 61
Carter 52
Reagan 70
Bush, Sr. 64
Clinton 46
Bush, Jr. 54
Obama 47
Think About It
George Washington was 57 when he was elected into office. Abraham Lincoln was 51.
If these two ages were added to the data, what things would change? What things would not change?
Box and Whisker Worksheet
Team Huddle
