Answer:
The mean will change
It will
Change by Php1000
Step-by-step explanation:
In this , we are asked to calculate and give the value if when the Salary of one of 5 teachers is increased,
Before now, how do we know the total ages of the kings. What we do is simply multiply the kings’ average ages by their number and that is ; 15,000 * 5 = Php75,000
Now, having a raise of 5,000M by one of the teachers, will the mean change?
Now let’s see. First we add the total old value to the increment. That would be 75,000 + 5,000 = 80,000/5 = 16,000
Now by how much did this mean value change? You simply subtract the old value from the new = 16,000 - 15,000 = 1,000
Answer:
There will be a change in the mean.
There will be a difference of Php1000
Step-by-step explanation:
Average is the Same as mean and it implies total number of the income of the teachers divided by the individual number of those teachers whose income is involved.
Let Y be the total number of the teachers income.
Average of the 5 teachers income is Php15000
~ Y/5= 15000
Y= 15000×5
Y=75000
But since one of the teachers were promoted and received an increase of Php5000
(New)Total amount of money earned by the teachers will then be 75000+5000= 80000
The average of their income will be
80000/5= 16000
Therefore, the difference is 16000-15000= Php1000
