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For what reasons may the results of scientific polls not be acurate?
The results of scientific polls might not be accurate if the people being polled are aware of the agenda of the poll. A poll also might not be accurate if a large enough group of diverse people are not included in the poll.
How must a poll be done for it to be effective?
Polling is part science and part art. To be effective a Poll must be statistically valid and must be free of bias.The Statistical validity of the poll can be verified by examining the data for the poll. Pollsters usually indicate the number of participants (for example 1024 people in Canada were surveyed) , the make of the poll participants (this was a random poll which had approximately 100 people from each province) , the accuracy of the result (+/- 2.3%), The confidence interval (19 time out of 20); Be wary of polls that do not provide this level of information.Bias is subjective or a flaw in the methodology and could take many forms which skew creating sampling errors, for example. Nonresponse bias: skewed results because of those who do not respondResponse bias: Skewed because of those who respond to often.Wording of questions: Skewed data because of how a question is phrased.Coverage bias: Skewed data because of the group sampled was not representative.To be accurate an representative the poll must be statistically sound, and be free from bias.
An informal type of opinion poll is a n?
A straw poll is an informal type of opinion poll.
A scientific poll uses sampling techniques?
random
What is a Poll Clerk?
A poll clerk is an election officer that assists the deputy returning officer at a polling station by checking to see if the person requesting to vote is on the list of electors and by dealing with the paperwork.
