15.
18
(18 + 18 + 11 + 7 + 6 + 11 + 10 + 20 + 7)/9= 12========The mean, also often called the "average", is1/9 of (18 + 18 + 11 + 7 + 6 + 11 + 10 + 20 + 7)
16
Mean = 11 Median = 11 Mode = 4 Range = 18
Use the definition of average, write the corresponding equation, and solve it. In this case, the equation is:(3 + x + 16 + 18) / 4 = 11 since there are four numbers.
7, 11, (16), 18, 23. The median is 16 (shown in brackets).
The GCF is 1.
11 12 15 16 18 17 the answer is 15.5
Add the numbers together, and then - since there are three numbers - divide the result by 3.
Mean: 11 Median: 11 Mode: 4 Range: 18
27.3 reucuring (33333333333333)
median = 11.5 mean = 12