10 , 9 , 7 , 5 , 4
The mean of a set of numbers is the sum divided by the number of terms.
10+9+7+5+45
Add 10 and 9.
19+7+5+45
Add 19 and 7.
26+5+45
Add 26 and 5.
31+45
Add 31 and 4.
355
355
Divide 35 by 5.
7
Find the Mean (Arithmetic) 10 , 9 , 7 , 5 , 4