NVAMediumJEE Main 2023 · 31 January, Shift 1Measures of Dispersion

Mathematics Question from JEE Main 2023 · 31 January, Shift 1

If the variance of the frequency distribution

xi2345678fi3616α956\begin{array}{|c|c|c|c|c|c|c|c|} \hline x_i & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\ \hline f_i & 3 & 6 & 16 & \alpha & 9 & 5 & 6 \\ \hline \end{array}

is 33, then α\alpha is equal to:

Answer & step-by-step solution

Sign in to reveal the correct answer, the full step-by-step solution, and the common mistakes for this question.

Practice more Measures of Dispersion questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step - free to start.

Related questions