Statistics and Probability: JEE Main 2023 Mathematics question

JEE Main 2023 · 30 Jan, Morning shift · Q51

JEE Main 202330 Jan, Morning shiftMathematicsMediumStatistics and Probability258× since 2002

The mean and variance of 7 observations are 8 and 16 respectively. If one observation 14 is omitted and a and b are respectively mean and variance of remaining 6 observation, then

\mathrm{a+3 b-5}

is equal to ___________.

Your answerType your answer. Integers and decimals are accepted.

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