1.   Describe and comment on the technique of random sampling.

2.   If we choose names out of a hat, or by using random numbers, then we are doing truly random sampling.

3.   In addition he suggests a random sampling of enquiries for further in-depth analysis.

4.   Problem is, those indexes represent just random samplings of chain stores.

5.   Y., which works mainly for ad agencies and is following a Nielsen-like model of audience measurement through random sampling.

6.   If the sampling frame was constructed in such a way that the population members are listed in random order, then systematic sampling is equivalent to simple random sampling.

7.   Simple random sampling can be achieved even when no frame is available but where the population members present themselves one at a time as potential sample members.

8.   And the last would be a random sampling nationwide as a final check of the accuracy of their methods.

9.   A random sampling of people at Anaheim Stadium turned up a large number of church members, but Laurie discounted any suggestion that his audiences are mainly the converted.

10.   A random sampling of opinion, from areas with many Catholics and areas with few, indicated a similar story around the country.

a. + sampling >>共 119
statistical 19.01%
random 11.40%
small 5.26%
unscientific 2.92%
using 2.92%
scientific 2.63%
representative 2.34%
recent 2.34%
quick 2.05%
extensive 1.75%
random + n. >>共 529
drug 5.69%
access 4.83%
violence 3.69%
test 3.60%
check 3.23%
sample 3.14%
act 2.92%
search 2.23%
number 1.91%
sampling 1.78%
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