The empirical distribution of some variable X is given by the following table. (xi are observed values, ni - their frequencies) Xi; 10, 11, 12, 13, 14. Ni; 5, 8, 4, 8, 5 Find the point estimate of the standard deviation.
Added by Ruhi E.
Step 1
- The mean (μ) is calculated using the formula: μ = Σ(xi * ni) / N, where xi are the values, ni are their frequencies, and N is the total number of observations. - First, calculate the total number of observations (N): N = 5 + 8 + 4 + 8 + 5 = 30. - Show more…
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