Chapter 10, Problem 1NT

To determine

To graph:

A stem and leaf plot using the data in the table, which lists the presidents of the United States and their ages at death.

Answer to Problem 1NT

Solution:

$\begin{array}{cc}\begin{array}{l}4\\ 5\\ 6\\ 7\\ 8\\ 9\end{array}& \begin{array}{l}69\\ 36778\\ 003344567778\\ 0112347889\\ 01358\\ 0033\end{array}\end{array}$

Explanation of Solution

Given:

The age at death of presidents of United States.

President	Age at death	President	Age at death	President	Age at death
George Washington	67	Franklin Pierce	64	Woodrow Wilson	67
John Adams	90	James Buchanan	77	Warren Harding	57
Thomas Jefferson	83	Abraham Lincoln	56	Calvin Coolidge	60
James Madison	85	Andrew Johnson	66	Herbert Hoover	90
James Monroe	73	Ulysses Grant	63	Franklin Roosevelt	63
John Q. Adams	80	Rutherford Hayes	70	Harry Truman	88
Andrew Jackson	78	James Garfield	49	Dwight Eisenhower	78
Martin Van Buren	79	Chester Arthur	57	John Kennedy	46
William H. Harrison	68	Grover Cleveland	71	Lyndon Johnson	64
John Tyler	71	Benjamin Harrison	67	Richard Nixon	81
James K. Polk	53	William McKinley	58	Gerald Ford	93
Zachary Taylor	65	Theodore Roosevelt	60	Ronald Reagan	93
Millard Fillmore	74	William Taft	72

Calculation:

Drawing a vertical line and write the tens of digits on left side and ones on right side.

$\begin{array}{cc}\begin{array}{l}4\\ 5\\ 6\\ 7\\ 8\\ 9\end{array}& \begin{array}{l}69\\ 36778\\ 003344567778\\ 0112347889\\ 01358\\ 0033\end{array}\end{array}$

Here $\begin{array}{cc}5& 3\end{array}\text{ represents the age 53}\text{.}$