The arithmetic mean is (22 + 31 + 34)/3 = 87/3 = 29
The arithmetic mean is (22 + 31 + 34)/3 = 87/3 = 29
The arithmetic mean is (22 + 31 + 34)/3 = 87/3 = 29
The arithmetic mean is (22 + 31 + 34)/3 = 87/3 = 29
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Their average is 22 and their difference is 9 so use 22 and 9 13*31 = 222 - 92 = 484 - 81 = 403
Put the numbers in order from low to high or high to low; the median is the number in the middle; if two numbers are in the middle, take the average 2 3 7 14 15 16 20 22 31 31 35 36 median = (16 + 20)/2 = 18
15
The composite numbers between 21 and 31 are: 21 22 24 25 26 27 28 30
31