In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders High School Mean score on test Glenwood 81 269 Central City 93 333 Lincoln High 72 166 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. mean of all ninth grader's scores =
In a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders High School Mean score on test Glenwood 81 269 Central City 93 333 Lincoln High 72 166 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. mean of all ninth grader's scores =
MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
Publisher:Amos Gilat
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![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
81
269
Central City
93
333
Lincoln High
72
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.
mean of all ninth grader's scores =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fffdc18dc-2702-4874-bb63-9fb49a6e1459%2F5806f844-fb84-4196-a4c3-2e7f74e4f2b7%2Fd0f4bnn_processed.png&w=3840&q=75)
Transcribed Image 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
81
269
Central City
93
333
Lincoln High
72
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.
mean of all ninth grader's scores =
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