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【单选题】
如果次数分布中，各个标志值扩大为原来的2倍，各组次数都减小为原来的1／2，则算术平均数( )。A.
增加到原来的1／2
B.
稳定不变
C.
减少到原来的1／2
D.
扩大为原来的2倍
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举一反三
【简答题】Refer to Table 6-1. If the government creates a price ceiling which is $100 below the equilibrium price, the market price is_______, and _______ two-bedroom apartments will be rented.
【单选题】Table 5-1The following table shows the demand schedule for a particular good.PriceQuantity$150$125$910$615$320$025Refer to Table 5-1. Using the midpoint method, when price rises from $6 to $9, the pri...
A.
0.43
B.
0.67
C.
1.00
D.
1.5
【简答题】请选择正确的答案,并阐述选择的原因 。 Table 1.1 In the United Kingdom In the Rest of the World Productivity Umbrellas per labor hour 6 1 Units of corn per labor hour 4 3 Refer to Table 3.3. The United Kingdom has an ab...
【简答题】Refer to Table 6-1. If the government creates a price ceiling which is $100 below the equilibrium price, the market price is_______, and _______ two-bedroom apartments will be rented.
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