Mathematics, 17.09.2019 19:30 Serenitybella
In march 2011, the pew research center conducted a survey of us adults to determine whether higher education provides students with a good value compared to the cost. pollsters randomly selected 2,142 adults ages 18 and older living in the continental us. a total of 1,052 interviews were completed with respondents contacted by landline telephone and 1,090 with those contacted on their cellular phone. which feature of the sampling plan makes the sample representative of the population? the reputable organization conducting the study (the pew research center) the large sample size of 2,142 adults
Answers: 1
Mathematics, 21.06.2019 20:30, shonesam98
Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters
Answers: 1
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