18+21+22+25+29+29+31=175
175/7=25
Mean=25
21
21.8Simply add them all up, and then divide by how many numbers you have.
All the numbers are composite except the ones in bold: 18 19 20 21 22 23 24 25.
21 and 25.
The mean = The sum of all the values ÷ The number of values. 18 + 15 + 22 + 18 + 25 + 19 + 23 = 140 : Number of values = 7 Mean = 140 ÷ 7 = 20
23
20 + 21 + 22 + 23 + 25 + 27 + 30 + 30 = 198/8 = 24.75
22
(14, 15, 16, 16, 16, 18, 22, 25) Mode: 16 Mean: 17.75 Median: 16
22 and 25 because they appears the most
22
10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25