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Alenkasestr
2 months ago
11

Kirsten calculated the mean of 10 quiz scores. Later she was told there was an error in grading one of her quizzes. A quiz score

of 79 was revised to 89.
How will this grading revision affect the calculated mean of Kirsten's quiz scores?
Answer Options with 4 options
A. The mean will stay the same.
B. The mean will be 1 point higher.
C. The mean will be 5 points higher.
D. The mean will be 10 points higher.
Mathematics
2 answers:
lawyer [12.5K]2 months ago
3 0
The correct choice is D. The average will increase by 10 points. The problem states that one quiz score was revised from 79 to 89, which is a difference of 10 points. I hope this response is useful.:)
Leona [12.6K]2 months ago
3 0
The average will increase by 5 points, therefore, option c is correct!
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