Mathematics

Mathematics, 14.10.2019 00:20, trinitychavira0727

Just to check if this app actually has people that respond to questions:
what is 2 + 2?

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Mathematics, 27.06.2019 22:40, gtjermaine3249

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. a pollster contacts 87 people in the 18-21 age bracket and finds that 74 of them respond and 13 refuse to respond. when 256 people in the 22-29 age bracket are contacted, 232 respond and 24 refuse to respond. assume that 1 of the 343 people is randomly selected. find the probability of getting someone in the 22-29 age bracket or someone who refused to respond.

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Mathematics, 31.07.2019 15:30, vanessa051266

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. a pollster contacts 92 people in the 18-21 age bracket and finds that 78 of them respond and 14 refuse to respond. when 284 people in the 22-29 age bracket are contacted, 265 respond and 19 refuse to respond. assume that 1 of the 376 people is randomly selected. find the probability of getting someone in the 22-29 age bracket or someone who refused to respond.

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Mathematics, 03.08.2019 03:10, drobledo9

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. a pollster contacts 95 people in the 18-21 age bracket and finds that 81 of them respond and 14 refuse to respond. when 247 people in the 22-29 age bracket are contacted, 215 respond and 32 refuse to respond. assume that 1 of the 342 people is randomly selected. find the probability of getting someone in the 22-29 age bracket or someone who refused to respond.

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Mathematics, 11.10.2019 00:30, hncriciacheichi

Aresearcher conducting a telephone survey is concerned about possible sources of bias. of the following, which is the best example of nonresponse bias? the wording of the questions in the survey leads people to respond in a certain way. a. the behavior of the interviewer leads people to respond in a certain way. b. people might be uncomfortable with the survey questions and, as a result, might not always respond to those questions truthfully. c. many of the people selected to participate in the survey who do not respond might have opinions different from those who do respond. d. people without telephones are overlooked in the sampling procedure used to determine who is surveyed.

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