Solution:
From given data, we make the following table
x | x2 |
2 | 4 |
3 | 9 |
11 | 121 |
x | x2 |
But we know that, variance
Therefore, the values of x are 6 and .
The variance of the numbers 2, 3,11 and x is.find the value x .
From given data, we make the following table
x | x2 |
2 | 4 |
3 | 9 |
11 | 121 |
x | x2 |
But we know that, variance
Therefore, the values of x are 6 and .