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Mathematics, 21.06.2019 15:00
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
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Mathematics, 22.06.2019 02:00
What is the area of this parallelogram? 434.28 cm2 263.67 cm2 527.34 cm2 217.14 cm2
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Mathematics, 22.06.2019 03:30
Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?
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