Question:
Let the mean and variance of the frequency distributionxi 2 4 6 8 10 12 14 16 fi 4 4 α 15 8 β 4 5
are 9 and 15.08 respectively, then the value of α2+β2-αβ is ____.\
Let the mean and variance of the frequency distribution
are 9 and 15.08 respectively, then the value of α2+β2-αβ is ____.
\| xi | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 |
| fi | 4 | 4 | α | 15 | 8 | β | 4 | 5 |
Updated On: Oct 17, 2024
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Correct Answer: 25
Solution and Explanation
The correct answer is: 25
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