Continuing: SD of T = X + Y is
- Acheck_circle
5
- B
1
- C
25
- D
7
Explanation
Var = 9 + 16 = 25; SD = 5.
Combining Random Variables
AP Statistics· difficulty 4/5
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AP Statistics· difficulty 4/5
Continuing: SD of T = X + Y is
5
1
25
7
Explanation
Var = 9 + 16 = 25; SD = 5.
Want 10 more like this — adaptive to your weak spots?