Mathematics, 09.10.2019 20:00 davidoj13
The state of virginia has implemented a standard of learning (sol) test that all public school students must pass before they can graduate from high school. a passing grade is 75. montgomery county high school administrators want to gauge how well their students might do on the sol test, but they don’t want to take the time to test the whole student population. instead, they selected 20 students at random and gave them the test. the results are as follows: 83 79 56 93 48 92 37 45 72 71 92 71 66 83 81 80 58 95 67 78 assume that sol test scores are normally distributed. a. compute the mean and standard deviation for these data. b. determine the probability that a student at the high school will pass the test. c. how many percent of students will receive a score between 75 and 95? d. what score will put a student in the bottom 15% in sol score among all students who take the test? e. what score will put a student in the top 2% in sol score among all students who take the test? g
Answers: 2
Mathematics, 21.06.2019 14:30
Ahomeowner plans to hang wallpaper on one wall of a bedroom that is 10 feet long if a stripe of wallpaper is 20 inches wide and stripes or hung vertically how many stripes on wall paper with the homeowner required
Answers: 1
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.
Answers: 2
Mathematics, 21.06.2019 21:00
Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?
Answers: 1
Mathematics, 21.06.2019 23:00
Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.
Answers: 2
The state of virginia has implemented a standard of learning (sol) test that all public school stude...
Biology, 06.12.2020 18:50
Mathematics, 06.12.2020 18:50
Mathematics, 06.12.2020 18:50
Biology, 06.12.2020 18:50
Computers and Technology, 06.12.2020 18:50
Computers and Technology, 06.12.2020 18:50
Chemistry, 06.12.2020 18:50
Chemistry, 06.12.2020 18:50
English, 06.12.2020 18:50
History, 06.12.2020 18:50
History, 06.12.2020 18:50