If the mean and variance of eight numbers

Question:

If the mean and variance of eight numbers $3,7,9,12,13,20, x$ and $y$ be 10 and 25 respectively, then $x \cdot y$ is equal to______

Solution:

Leave a comment

Close
faculty

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now