2. Questions Bank
  3. JEE Main & Advanced
  4. Mathematics
  5. Probability

JEE Main & Advanced Mathematics Probability Question Bank Definition of probability

  • question_answer
    The probability  of getting head and tail alternately in three throws of a coin (or a throw of three coins), is              [RPET 1997]

    A)                 \[\frac{1}{8}\]       

    B)                 \[\frac{1}{4}\]

    C)                 \[\frac{1}{3}\]       

    D)                 \[\frac{3}{8}\]

    Correct Answer: B

    Solution :

               Total probable ways \[=8\]            Favourable number of ways \[=[HTH,\,\,THT]\]                 Hence required probability \[=\frac{2}{8}=\frac{1}{4}.\]


You need to login to perform this action.
You will be redirected in 3 sec spinner