Statistics and Probability: JEE Main 2019 Mathematics question

JEE Main 2019 · 11 Jan, Evening shift · Q4879

JEE Main 201911 Jan, Evening shiftMathematicsMediumStatistics and Probability258× since 2002

A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, then

\left( {{{mean\,\,of\,X} \over {s\tan dard\,\,deviation\,\,of\,X}}} \right)

is equal to :

Statistics and Probability: JEE Main 2019 Mathematics question

JEE Main 2019 · 11 Jan, Evening shift · Q4879

JEE Main 201911 Jan, Evening shiftMathematicsMediumStatistics and Probability258× since 2002

A bag contains 30 white balls and 10 red balls. 16 balls are drawn one by one randomly from the bag with replacement. If X be the number of white balls drawn, then

\left( {{{mean\,\,of\,X} \over {s\tan dard\,\,deviation\,\,of\,X}}} \right)

is equal to :

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