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.

The answer would be D. The mean will be 10 points higher. The question said that the quiz score changed from a 79 to an 89 which is exactly 10 points higher than the previous score. I hope this answer helps. :)

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MubeenaD MubeenaD · Answer 2 · 2022-05-19T13:13:14+02:00

The calculated mean of Kirsten's quiz scores changes in the mean, then the mean will be 10 points higher.

What is mean?

The mean is "the average of the set of two or more numbers".

According to the question,

Number of quiz is 10 and the mean of quiz score was 79 revised to 89.

Difference between previous score and after revised score is 10 points.

Then the mean will be 10 points higher than before.

Hence, the calculated mean of Kirsten's quiz scores changes in the mean, then the mean will be 10 points higher.

Learn more about Mean here

https://brainly.com/question/17241190

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