X ~ N(20, 3), Y ~ N(30, 4) independent. Mean of T = X + Y is
- A
70
- B
10
- C
25
- Dcheck_circle
50
Explanation
20 + 30 = 50.
Combining Random Variables
AP Statistics· difficulty 4/5
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AP Statistics· difficulty 4/5
X ~ N(20, 3), Y ~ N(30, 4) independent. Mean of T = X + Y is
70
10
25
50
Explanation
20 + 30 = 50.
Want 10 more like this — adaptive to your weak spots?