Question

Mean of 11,10,12,12,9,10,14,12,9 is ​

Answer 1

Answer: 11

Order the Numbers

Before: 11,10,12,12,9,10,14,12,9

After: 9,9,10,10,11,12,12,12,14

Add

9+9+10+10+11+12+12+12+14=99

Divide

99÷9=11

Answer 2

Answer: Hi!

To find the mean of a data set, you have to add the numbers in the set and then divide the sum by the number of values that are in the set.

11 + 10 + 12 + 12 + 9 + 10 + 14 + 12 + 9 = 99

There are 9 values in the data set, so we divide 99 by 9:

99 ÷ 9 = 11

The mean of this data set is 11.

Hope this helps!