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You are a teacher. Your first-period class, with 23 students, had a mean score of 83% on the midterm exam Your second-period class, with 28 students, had a mean score of 85% on the same exam. Does it follow that the mean score for both classes comoined is 84%? Explain. Choose the correct answer below. O A. No, because it is impossible for a 23 student class to get a mean score of 83% O B. Yes, because 83% of 23 plus 85% of 28 is 84% of 51, the total number of students. O C. Yes, because the average of 83% and 85% is 84%. O D. No, bacause it is a general rule to never average percentages.

You are a teacher. Your first-period class, with 23 students, had a mean score of 83% on the midterm exam Your second-period class, with 28 students, had a mean score of 85% on the same exam. Does it follow that the mean score for both classes comoined is 84%? Explain. Choose the correct answer below. O A. No, because it is impossible for a 23 student class to get a mean score of 83% O B. Yes, because 83% of 23 plus 85% of 28 is 84% of 51, the total number of students. O C. Yes, because the average of 83% and 85% is 84%. O D. No, bacause it is a general rule to never average percentages.

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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You are a teacher. Your first-period class, with 23 students, had a mean score of 83% on the midterm exam Your second-period class, with 28 students, had a mean score of 85% on the same exam. Does it follow that the mean score for both classes comoined is 84%? Explain. Choose the correct answer below. O A. No, because it is impossible for a 23 student class to get a mean score of 83%. O B. Yes, because 83% of 23 plus 85% of 28 is 84% of 51, the total number of students. O C. Yes, because the average of 83% and 85% is 84%. O D. No, bacause it is a general rule to never average percentages.
Transcribed Image Text:You are a teacher. Your first-period class, with 23 students, had a mean score of 83% on the midterm exam Your second-period class, with 28 students, had a mean score of 85% on the same exam. Does it follow that the mean score for both classes comoined is 84%? Explain. Choose the correct answer below. O A. No, because it is impossible for a 23 student class to get a mean score of 83%. O B. Yes, because 83% of 23 plus 85% of 28 is 84% of 51, the total number of students. O C. Yes, because the average of 83% and 85% is 84%. O D. No, bacause it is a general rule to never average percentages.
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