If X ˜ N(16,49), the mean is___________?
Correct answer: B. 16
- A. 49
- B. 16
- C. 7
- D. 4
Explanation
In the notation X ~ N(16, 49), the first parameter is the mean and the second is usually the variance. Therefore, the mean is 16, while 49 is the variance and 7 would be its standard deviation.
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