To find the mean, you first add up all the numbers.
20+10+13+20+9+6=78
Then, you divide by how many numbers there are.
78/6=13
The answer is 13.
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13 + 3 - 6 + 10 = 20 : answer if it is 3 minus 6 in the question. 13 + 3.6 + 10 = 26.6 : answer if it is a decimal 3.6.
Yes. For example, the mean of: 10,20,20,20,20,30 is (10+20+20+20+20+30)/6
It is: 6 and 13/20 = 6.65
0.3 ??? I will assume that is what you mean. Algebraically, 0.3X = 6 X = 20 ----------check ( use 3/10 for 0.3 ) 3/10(20) = 6 60/10 = 6 6 = 6 -----------checks
Mean: 9 Median: 8.5 Mode: 14, 6, 8, 10, 9, 5, 7, 13