Question
The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 78, 95,
The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 78, 95, and 68, which is 80.3. 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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Calculus Early Transcendentals
Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin
9th Edition
1337613924, 978-1337613927
