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Statistics question

2023 · 31 Jan · Shift 1 · Q47
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Statistics question

2023 · 31 Jan · Shift 1 · Q47

JEE MainMathematicsStatisticsNumerical+4 / −1

If the variance of the frequency distribution

xix_ixi​ 2 3 4 5 6 7 8
Frequency fif_ifi​ 3 6 16 α\alphaα 9 5 6

is 3, then α\alphaα is equal to ‾\underline{\hspace{2cm}}​.

Numerical answer
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