A neurobiologist is launching a nationwide professional study on the connection between text messaging and a particular type of brain function. The population of his study is 20 - to - 32year-old people who text at least once a day. He wants to make sure that the whole range of ages is represented in the study. Which kind of sampling would provide the most reliable information for this study?

convenience sampling

simple random sampling

systematic sampling

volunteer sampling

Question

A neurobiologist is launching a nationwide professional study on the connection between text messaging and a particular type of brain function. The population of his study is 20 - to - 32year-old people who text at least once a day. He wants to make sure that the whole range of ages is represented in the study. Which kind of sampling would provide the most reliable information for this study?

 convenience sampling

 simple random sampling

 systematic sampling

 volunteer sampling

faman39 · Answer

Thnk u mathlover to come !

faman39 · Answer

I was feeling so disappointed for probability probs

mathslover · Answer

The best method is stratified sampling where, in this case, the population is stratified by age and simple random samples are obtained from the strata. This is not one of the options, so c) would be the expected answer, I think. http://answers.yahoo.com/question/index?qid=20110613093051AAK7EkX

anonymous · Answer

methlover