If the mean and variance of six observations 7, 10, 11, 15, a, b are 10 and 20/3, respectively, then the value of | a - b | is equal to:

Statistics and Probability: JEE Main 2021 Mathematics question

JEE Main 2021 · 20 Jul, Evening shift · Q5464

JEE Main 202120 Jul, Evening shiftMathematicsEasyStatistics and Probability258× since 2002

If the mean and variance of six observations 7, 10, 11, 15, a, b are 10 and

{{20} \over 3}

, respectively, then the value of | a

-

b | is equal to :

JEE Main 2021 · 20 Jul, Evening shift · Q5464

JEE Main 202120 Jul, Evening shiftMathematicsEasyStatistics and Probability258× since 2002

If the mean and variance of six observations 7, 10, 11, 15, a, b are 10 and

{{20} \over 3}

, respectively, then the value of | a

-

b | is equal to :