The empirical distribution of some variable X is given by the following table. (xi are observed values, ni - their frequencies) Xi; -6, 0, 2, 4. Ni; 1, 3, 4, 2 Find the point estimate of the variance.
Added by Ruhi E.
Step 1
To find the mean (μ), use the formula: \[ \mu = \frac{\sum (x_i \times n_i)}{\sum n_i} \] where \(x_i\) are the values and \(n_i\) are their respective frequencies. Plugging in the values: \[ \mu = \frac{(-6 \times 1) + (0 \times 3) + (2 Show more…
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