A bag contains 5 red and 3 blue marbles. Two are drawn without replacement.
What is the probability both are red?
- Acheck_circle
20/56
- B
10/28
- C
5/8
- D
25/64
Explanation
P(R1) * P(R2|R1) = (5/8) * (4/7) = 20/56.
Independent Events and Unions of Events
AP Statistics· difficulty 3/5
Want 10 more like this — adaptive to your weak spots?