Number should be 2 instead of x .
Explanation:
Here we have , Jonas has the following data: 2, 5, x, 2, 4, 3. if the average is 3, We need to find what number should be instead x . Let's find out:
We know that
Where
is terms and n is the number of terms . Let's find average for 2, 5, x, 2, 4, 3 which is 3 :
⇒
⇒
⇒
⇒
⇒
Therefore , Number should be 2 instead of x .