subject
Mathematics, 24.08.2020 02:01 carlinryan

In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean score on test Number of ninth graders Glenwood 84 279 Central City 92 341 Lincoln High 70 166 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 82 . Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place.

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 14:00, paulesparsa6
Pokój na planie w skali 1: 100 jest prostokątem i ma wymiary 5,2cmx4,4cm. jaką powierzchnię w m2 ma pokój? ile m bieżących wykładziny dywanowej o szerokości 5m trzeba kupić by wyłożyć cały pokój jednym kawałkiem przy minimalnych stratach ? ile zapłacimy za wykładzinę jeśli 1m2 kosztuje 30 zł ?
Answers: 1
image
Mathematics, 21.06.2019 17:40, PONBallfordM89
How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation
Answers: 1
image
Mathematics, 22.06.2019 00:30, drewje12
Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x-2 + 2)(x2- 3) = 0 (x + 2)2(x - 3)2 = 0
Answers: 2
image
Mathematics, 22.06.2019 01:00, mleighaj9560
38 points and brainliest plz answer question in word document
Answers: 1
You know the right answer?
In a city with three high schools, all the ninth graders took a Standardized Test, with these result...

Questions in other subjects: