The survey used a ______ sample of two thousand people across the Midwest.
A: random
B: relaxed
C: relieved
D: reluctant
A: random
B: relaxed
C: relieved
D: reluctant
A
举一反三
- 中国大学MOOC: 11. Fill in the blanks with the following words: random randomly randomize The survey used a _____________ sample of two thousand people across England and Wales.
- Our survey used a ________sample of 500 college students across the country.
- Which are the common used ways to sampling? A: Simple random sample without replacement B: Simple random sample with replacement C: Stratified sample D: Cluster sample
- A researcher wants to estimate the difference in the means of two populations. A random sample of 36 items from the first population results in a sample mean of 430. A random sample of 49 items from t
- Two thousand dollars ______ (have) been used up.
内容
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More than two ______ years ago, people knew little about the universe. A: thousands B: thousand C: thousands of D: thousand of
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There were more than two thousand people ______ the Titanic. A: board B: broad C: aboard D: abroad
- 2
There are about ( ) students in our school. A: two thousand of B: two thousands C: two thousands of D: two thousand
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According to the survey, which two activities do most people enjoy doing?[2分]
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() soldiers and doctors have been in Wenchuan to help the people there. A: Thousand of B: Two thousands C: Thousands of