X has mean 50 and SD 8. Let Y = X + 10.
What is mean and SD of Y?
- A
mean 50, SD 8
- B
mean 60, SD 18
- C
mean 60, SD 80
- Dcheck_circle
mean 60, SD 8
Explanation
Adding constant shifts mean by 10 but does not change SD.
Combining Random Variables
AP Statistics· difficulty 2/5
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