The mean of discrete observations \[{{y}_{1}},\,{{y}_{2}},\,......,\,{{y}_{n}}\] is given by [DCE 1999]

\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}}}{\sum\limits_{i=1}^{n}{i}}\]

\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}}}{n}\]

\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}{{f}_{i}}}}{n}\]

\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}{{f}_{i}}}}{\sum\limits_{i=1}^{n}{{{f}_{i}}}}\]

The mean of discrete observations \[{{y}_{1}},\,{{y}_{2}},\,......,\,{

1.	The mean of discrete observations \[{{y}_{1}},\,{{y}_{2}},\,......,\,{{y}_{n}}\] is given by [DCE 1999]
A.	\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}}}{n}\]
B.	\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}}}{\sum\limits_{i=1}^{n}{i}}\]
C.	\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}{{f}_{i}}}}{n}\]
D.	\[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}{{f}_{i}}}}{\sum\limits_{i=1}^{n}{{{f}_{i}}}}\]
Answer» B. \[\frac{\sum\limits_{i=1}^{n}{{{y}_{i}}}}{\sum\limits_{i=1}^{n}{i}}\]

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The mean of discrete observations \[{{y}_{1}},\,{{y}_{2}},\,......,\,{{y}_{n}}\] is given by [DCE 1999]

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