MCQ
In a multiple-choice question, there are three options out of which only one is correct. A person is guessing the answer at random. If there are 7 such questions, then the probability that he will get exactly 4 correct answers is ______
- A`8/3^7`
- B`560/3^7`
- ✓`280/3^7`
- D`16/3^7`