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Mathematics 14 Online
OpenStudy (howard-wolowitz):

explain this to me

Vocaloid (vocaloid):

voluntary response could be something like putting up a poll where parents can choose to answer the question

Vocaloid (vocaloid):

[the key idea being that the participants choose to be part of the sample]

OpenStudy (howard-wolowitz):

ok so @Vocaloid Do we both agree that a poll for the parents is a suitable answer

OpenStudy (howard-wolowitz):

Why do you say that a "poll where they can choose to answer the question is best?"

jimthompson5910 (jim_thompson5910):

A convenience sample is where a sample is drawn where it's easiest to do. For example, if there are 50 parents that come to the school, then it's most convenient to give them the survey. Is it representative of all the parents? Probably not. Things get more skewed if you happen to ask amongst your circle of friends. It's much better to do a simple random sample (SRS) by putting every parent's name in a hat and drawing out the names randomly

OpenStudy (howard-wolowitz):

actually your talking about something else

jimthompson5910 (jim_thompson5910):

I would make the poll mandatory. So have it be not too long and difficult to fill out. To select the sample, it would be best to assign every parent a number. Then have a computer randomly generate a big enough sample for things to be representative of the population

OpenStudy (howard-wolowitz):

so do you agree with any three of my answers?

OpenStudy (howard-wolowitz):

SRS - Randomly select parents from many high schools Convenice - Select parents form your high school Voluntary - Make the poll mandatory

jimthompson5910 (jim_thompson5910):

`Voluntary - Make the poll mandatory` that's a contradiction if something is voluntary, then it's not mandatory

jimthompson5910 (jim_thompson5910):

I agree with the first two though

OpenStudy (howard-wolowitz):

WEll crap, how about make it open for the parents to take upon their on will

jimthompson5910 (jim_thompson5910):

yeah voluntary would be letting them choose to return it or not this often leads to a skewed sample

OpenStudy (howard-wolowitz):

ok so SRS - Randomly select parents from many high schools Convenice - Select parents form your high school Voluntary - Let the parents choose to continue the war or not continue

jimthompson5910 (jim_thompson5910):

more like "choose to answer the survey"

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