Concept explainers
To find: the mean score for all 7 quizzes.
Answer to Problem 51STP
The mean score for all 7 quizzes is 89
Explanation of Solution
Given information:
The mean score for Sās first six algebra quizzes was 88. If she scored a 95 on her next quiz.
Given option,
- 89
- 90
- 91
- 92
Calculation:
First need to see how many points S had in first six quizzes. If mean score was 88, that means calculate her total number of points as:
Now, need to add het 7th quiz score to the total of first six and divide it 7 to get the final answer,
Hence, the mean score for all 7 quizzes is 89.
Chapter 1 Solutions
Glencoe Algebra 2 Student Edition C2014
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