# Find the Mean (Arithmetic) 90 , 90 , 90 , 90 , 90 , 50 , 50 , 50 , 50 , 50 , 50 90 , 90 , 90 , 90 , 90 , 50 , 50 , 50 , 50 , 50 , 50
The mean of a set of numbers is the sum divided by the number of terms.
90+90+90+90+90+50+50+50+50+50+5011
Simplify the numerator.
Add 90 and 90.
180+90+90+90+50+50+50+50+50+5011
Add 180 and 90.
270+90+90+50+50+50+50+50+5011
Add 270 and 90.
360+90+50+50+50+50+50+5011
Add 360 and 90.
450+50+50+50+50+50+5011
Add 450 and 50.
500+50+50+50+50+5011
Add 500 and 50.
550+50+50+50+5011
Add 550 and 50.
600+50+50+5011
Add 600 and 50.
650+50+5011
Add 650 and 50.
700+5011
Add 700 and 50.
75011
75011
Divide.
68.18‾
The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.
68.2
Find the Mean (Arithmetic) 90 , 90 , 90 , 90 , 90 , 50 , 50 , 50 , 50 , 50 , 50

### Solving MATH problems

We can solve all math problems. Get help on the web or with our math app

Scroll to top