单项选择题

POPULATION DATA FOR TEN SELECTED STATES IN 1980 AND 1987

State Population(in thousands) Percent Change in
Population，
1980—1987 Population Per
Square Mile in
1987

1980 1987

A
B
C
D
E
F
G
H
I
J 23，668
17，558
14，229
9，746
11，864
11，427
10，798
9，262
7，365
5，882 27.663
17，825
16，789
12，023
11，936
11，582
10，784
9，200
7，672
6，413 16.9
1.5
18.0
23.4
0.6
1.4
-0.1
-0.7
4.2
9.0 177
372
64
222
266
208
263
162
1，027
131

In 1987 the average(arithmetic mean)population of the three most populous ofthe ten selected states was most nearly equal to（）

A. 18 million
B. 19 million
C. 20 million
D. 21 million
E. 22 million

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热门试题

单项选择题

A、 45
B、 80
C、 165
D、 200
E、 It cannot be determined from the information given．

单项选择题

A. $38，000
B. $170，000
C. $380，000
D. $450，000
E. $1，700，000

POPULATION DATA FOR TEN SELECTED STATES IN 1980 AND 1987
State	Population(in thousands)		Percent Change in Population， 1980—1987	Population Per Square Mile in 1987

	1980	1987
A B C D E F G H I J	23，668 17，558 14，229 9，746 11，864 11，427 10，798 9，262 7，365 5，882	27.663 17，825 16，789 12，023 11，936 11，582 10，784 9，200 7，672 6，413	16.9 1.5 18.0 23.4 0.6 1.4 -0.1 -0.7 4.2 9.0	177 372 64 222 266 208 263 162 1，027 131