How long did real cowboys live? one answer may be found in the book the last cowboys by connie brooks (university of new mexico press). this delightful book presents a thoughtful sociological study of cowboys in west texas and southeastern new mexico around the year 1890. a sample of 32 cowboys gave the following years of longevity: 58 52 68 86 72 66 97 89 84 91 91 92 66 68 87 86 73 61 70 75 72 73 85 84 90 57 77 76 84 93 58 47 (a) make a stem-and-leaf display for these data. (use the tens digit as the stem and the ones digit as the leaf. enter numbers from smallest to largest separated by spaces. enter none for stems with no values.) longevity of cowboys

Stems        Leaf

       4    |    7

       5    |    2, 7, 8, 8

       6    |    1, 6, 6, 8, 8

       7    |    0, 2, 2, 3, 3, 5, 6, 7

       8    |    4, 4, 4, 5, 6, 6, 7, 9

       9    |    0, 1, 1, 2, 3, 7

Step-by-step explanation:

Consider the provided information.

We need to make a stem-and-leaf display for these data.

A stem and leaf display of the data is shown below.

The left side of the table contains the stems and the right side contains the Leaf.

The leaf contains the last digit of the number and the stem contains all of the other digits.

Now consider the provided numbers

The leaves are listed in increasing order in a row to the right of each stem.

Thus, the required table is

Stems        Leaf

       4    |    7

       5    |    2, 7, 8, 8

       6    |    1, 6, 6, 8, 8

       7    |    0, 2, 2, 3, 3, 5, 6, 7

       8    |    4, 4, 4, 5, 6, 6, 7, 9

       9    |    0, 1, 1, 2, 3, 7

m∠a is 90°

m∠b is 40°