Which situation is an example of an observational study?
a.) having a randomly selected...
Mathematics, 06.02.2020 02:49 bluebug7316
Which situation is an example of an observational study?
a.) having a randomly selected group of students take a pen and paper test and comparing the results with another randomly selected group of students who took the same test on the computer?
b.) polling voters about their favorite candidates in upcoming elections.
c.) recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen.
d.) asking kids in a kindergarten classroom about the average number of pieces of fruit they eat each day.
Answers: 1
Mathematics, 21.06.2019 19:00, abraham1366
Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42
Answers: 1
Mathematics, 22.06.2019 02:00, elielson1497
Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.
Answers: 1
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