AP EAMCET · Maths · Probability
An unbiased coin is tossed 3 times. If the third toss gets head, then the probability of getting at least one more head is
- A \(3 / 4\)
- B \(1 / 4\)
- C \(1 / 2\)
- D \(1 / 3\)
Answer & Solution
Correct Answer
(A) \(3 / 4\)
Step-by-step Solution
Detailed explanation
If the third toss gets head, then the outcomes are \(\{\mathrm{HHH}, \mathrm{HTH}, \mathrm{THH}, \mathrm{TTH}\}\). \(P(\) at least one head in first 2 trial \()=3 / 4\)
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