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 80 272 335 Central City Lincoln...

Extracted text: 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 80 272 335 Central City Lincoln High The city's PR manager, who never took a college math class, 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? 94 72 178 Round to one decimal place. Mean of all ninth grader's scores =