Most powerful women in America. Fortune (Nov. 14, 2005) published a list of the 50 most powerful women in America. The data on age (in years) and title of each of these 50 women are stored in the WPOWER50 file. The first five and last two observations of the data are listed in the accompanying table.
a. Find the mean, median, and modal age of these 50 women.
b. What do the mean and median indicate about the skewness of the age distribution?
c. Construct a relative frequency histogram for the age data. What is the modal age class?
WPOWER50 (Selected observations)
Rank | Name | Age Company | Title | |
1 | Meg Whitman | 49 | eBay | CEO/Chair |
2 | Anne Mulcahy | 52 | Xerox | CEO/Chair |
3 | Brenda Barnes | 51 | Sara Lee | CEO/President |
4 | Oprah Winfrey | 51 | Harpo | Chair |
5 | Andrea Jung | 47 | Avon | CEO/Chair |
⋮ | ⋮ | ⋮ | ⋮ | ⋮ |
49 | Safra Catz | 43 | Oracle | President |
50 | Kathy Cassidy | 51 | General Electric | Treasurer |
Source: Fortune, Nov. 14, 2005.
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