Statistics And Probability Question 67
Question: The mean of discrete observations $ y_1,y_2,……,y_{n} $ is given by
[DCE 1999]
Options:
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}}} $
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Answer:
Correct Answer: A
Solution:
It is obvious.
BETA
