Let the mean of the data x | 1 | 3 | 5 | 7 | 9 Frequency (f) | 4 | 24 | 28 | α | 8 be 5. If m and σ² are respectively the mean deviation about the mean and the variance of the data, then (3 α)/(m+σ²) is equal to _ _ _ _ _

Statistics and Probability: JEE Main 2023 Mathematics question

JEE Main 2023 · 13 Apr, Morning shift · Q49

JEE Main 202313 Apr, Morning shiftMathematicsMediumStatistics and Probability258× since 2002

Let the mean of the data

x

| 1 | 3 | 5 | 7 | 9 Frequency (

f

) | 4 | 24 | 28 |

\alpha

| 8 be 5. If

m

and

\sigma^{2}

are respectively the mean deviation about the mean and the variance of the data, then

\frac{3 \alpha}{m+\sigma^{2}}

is equal to __________

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2023 Statistics and Probability Question with Answer (13 Apr Morning shift, Q49) | JEE Arc