Given:
The frequency distribution table.
To find:
The mean average score on a test.
Solution:
The frequency distribution table is
x a xa
y b yb
z c zc
Sum a+b+c xa+yb+zc
Now, the mean average score on the test is
Therefore, the mean average score on the test is .
Answer: Amount that they paid in 2007 is 1.01 millions.
Step-by-step explanation:
Since we have given that
Number of millions paid last month = $1.29 millions
According to question, it was 26% above what they paid in 2007.
Let the amount paid in 2007 be x
So, our equation becomes,
Hence, Amount that they paid in 2007 is 1.01 millions.