MCQ
Which of the following is correct for A - B?
- A$\text{A } \cap \text{ B}$
- B$\text{A }' \cap \text{ B}$
- C$\text{A } \cap \text{ B}'$
- D$\text{A }' \cap \text{ B}'$
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A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected randomwise, the probability that it is black or red ball is: