Statistics and Probability: JEE Main 2021 Mathematics question

JEE Main 2021 · 26 Aug, Evening shift · Q47

JEE Main 202126 Aug, Evening shiftMathematicsMediumStatistics and Probability258× since 2002

Let the mean and variance of four numbers 3, 7, x and y(x > y) be 5 and 10 respectively. Then the mean of four numbers 3 + 2x, 7 + 2y, x + y and x

-

y is ______________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2021 · 26 Aug, Evening shift · Q47

JEE Main 202126 Aug, Evening shiftMathematicsMediumStatistics and Probability258× since 2002

Let the mean and variance of four numbers 3, 7, x and y(x > y) be 5 and 10 respectively. Then the mean of four numbers 3 + 2x, 7 + 2y, x + y and x

-

y is ______________.

Your answerType your answer. Integers and decimals are accepted.

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