AP EAMCET · Maths · Probability
A person who tosses an unbiased coin gains two points for turning up a head and loses one point for a tail. If three coins are tossed and the total score \(X\) is observed, then the range of \(x\) is
- A \(\{0,3,6\}\)
- B \(\{-3,0,3\}\)
- C \(\{-3,0,3,6\}\)
- D \(\{-3,3,6\}\)
Answer & Solution
Correct Answer
(C) \(\{-3,0,3,6\}\)
Step-by-step Solution
Detailed explanation
Since it is given that for tossing a coin, if head will come down it will give two point and for tail comes down it loose one point. There are four cases arise Case (i) If all three tails comes out, then his points \(=-1-1-1=-3\). Case (ii) If two tails and one head comes out,…
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