Following is the number of shareholders for a selected group of large companies (in thousands):
|
Company
|
Number ofShareholders(thousands)
|
|
Company
|
Number of Shareholders (thousands)
|
|
Southwest Airlines
|
144
|
Standard Oil (Indiana) Home Depot
Detroit Edison Eastman Kodak Dow Chemical Pennsylvania Power
American Electric Power Ohio Edison Transamerica Corporation Columbia Gas System International Telephone &
Telegraph
Union Electric
Virginia Electric and Power Public Service Electric & Gas Consumers Power
|
173
|
|
General Public Utilities
|
177
|
195
|
|
Occidental Petroleum
|
266
|
220
|
|
Middle South Utilities
|
133
|
251
|
|
Chrysler
|
209
|
137
|
|
Standard Oil of California
|
264
|
150
|
|
Bethlehem Steel
|
160
|
262
|
|
Long Island Lighting
|
143
|
158
|
|
RCA
|
246
|
162
|
|
Greyhound Corporation
|
151
|
165
|
|
Pacific Gas & Electric
|
239
|
|
|
Niagara Mohawk Power
|
204
|
223
|
|
E. I. du Pont de Nemours
|
204
|
158
|
|
Westinghouse Electric
|
195
|
162
|
|
Union Carbide
|
176
|
225
|
|
BankAmerica
|
175
|
161
|
|
Northeast Utilities
|
200
|
The shareholder numbers are to be organized into a frequency distribution and several graphs drawn to portray the distribution.
a. Using seven classes and a lower limit of 130, construct a frequency distribution.
b. Portray the distribution as a frequency polygon.
c. Portray the distribution in a cumulative frequency polygon.
d. According to the polygon, three out of four (75 percent) of the companies have how many shareholders or less?
e. Write a brief analysis of the number of shareholders based on the frequency distribution and graphs.