The mean of discrete observations \( y_{1}, y_{2}, \ldots, y_{n} \) is given by
(A) \( \frac{\su...
The mean of discrete observations \( y_{1}, y_{2}, \ldots, y_{n} \) is given by
(A) \( \frac{\sum_{i=1}^{n} y_{i} f_{i}}{\sum_{i=1}^{n} f_{i}} \)
(B) \( \frac{\sum_{i=1}^{n} y_{i} f_{i}}{n} \)
(C) \( \frac{\sum_{i=1}^{n} y / i}{n} \)
(D) \( \frac{\sum_{i=1}^{n} y_{i}}{\sum_{i=1}^{n} i} \)
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