The post-operative quality of life (QOL) scores of 200 prostate cancer patients has a mean of 60 and a standard deviation of 10. How many patients are expected to have a QOL score between 40 and 80?
The post-operative quality of life (QOL) scores of 200 prostate cancer patients has a mean of 60 and a standard deviation of 10. How many patients are expected to have a QOL score between 40 and 80?
💡 Explanation
The post-operative quality of life (QOL) scores of 200 prostate cancer patients has a mean of 60 and a standard deviation of 10. How many patients are expected to have a QOL score between 40 and 80?
✓ Correct Answer: A. 190
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