Mathematics, 22.12.2020 22:00 samantha9430
Which of these would not produce a representative sample that determines the favorite
sport of the students at the local high school?
ask ten students wearing football jerseys each day for a week
ask every tenth student who arrives at school on Wednesday
ask every tenth student from a list of names in the student directory
ask five students from each classroom chosen by picking numbers
Answers: 2
Mathematics, 21.06.2019 12:30
Arunning track in the shape of an oval is shown. the ends of the track form semicircles. a running track is shown. the left and right edges of the track are identical curves. the top and bottom edges of the track are straight lines. the track has width 56 m and length of one straight edge 130 m. what is the perimeter of the inside of the track? (Ο = 3.14) 260.00 m 347.92 m 372.00 m 435.84 m
Answers: 1
Mathematics, 21.06.2019 23:00
You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax
Answers: 1
Mathematics, 22.06.2019 00:00
Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.
Answers: 2
Which of these would not produce a representative sample that determines the favorite
sport of the...
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