Mathematics · Statistics
In each of two experiments, 5 measurements were made of an observable. The first experiment yielded a mean of 80 and a standard deviation of 4, whereas the second experiment gave a mean of 100 and a standard deviation of 5. What is the combined standard deviation of the data?
- 14.53
- 24.83
- 36.52
- 410.97✓
Correct answer
10.97
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