OG12-Q4

shefff

In a demographic study, the population and total income of a certain region were estimated from other data, and both estimates had lower and upper limits.  At the time of the estimates, was the per capita income for the region greater than $16,500?
(1)    The lower limit for the estimate of the population was 330,000 people.
(2)     The lower limit for the estimate of the total income was $5,500,000,000

s

我的理解

由于题目中说“both estimates had lower and upper limits”，而下面的Statement1）和2）都只说了"the lower limit for the estimate" ，
只有下限而没有上限，因此条件仍然不足，所以选E。

shefff

我跟楼主的想法一样，但是还是不懂这题