Statistics and Probability: JEE Main 2010 Mathematics question

JEE Main 2010 · Annual, Paper 1 · Q4971

JEE Main 2010Annual, Paper 1MathematicsHardStatistics and Probability258× since 2002

Four numbers are chosen at random (without replacement) from the set

\left\{ {1,2,3,....20} \right\}.

Statement - 1: The probability that the chosen numbers when arranged in some order will form an AP is

{1 \over {85}}.

Statement - 2: If the four chosen numbers form an AP, then the set of all possible values of common difference is

\left( { \pm 1, \pm 2, \pm 3, \pm 4, \pm 5} \right).

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JEE Main 2010 Statistics and Probability Question with Solution (Annual Paper 1, Q4971) | JEE Arc

JEE Main 2010 · Annual, Paper 1 · Q4971

JEE Main 2010Annual, Paper 1MathematicsHardStatistics and Probability258× since 2002

Four numbers are chosen at random (without replacement) from the set

\left\{ {1,2,3,....20} \right\}.

Statement - 1: The probability that the chosen numbers when arranged in some order will form an AP is

{1 \over {85}}.

Statement - 2: If the four chosen numbers form an AP, then the set of all possible values of common difference is

\left( { \pm 1, \pm 2, \pm 3, \pm 4, \pm 5} \right).