The smallest and largest even number in the interval are 2 and 44 and their average is (2+44)/2 = 46/2 = 23
The next smallest and largest are 4 and 42 and their average is (4+42)/2 = 46/2 = 23
and so on. Each pair has an average of 23 so the overall average is 23.
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Find the average. That is, add all of the even numbers together, then divide that by the number of even numbers.
After ordering the numbers from least to greatest, average the two middle numbers.
You average the two numbers in the middle. For example, if you have the numbers 9, 13, 17, and 20, the median is the average of 13 and 17, which is 15.
Nothing could be simpler - no steps required. The answer is always the same: an infinite number of them. There are an infinite number of numbers between any two numbers - however close they are. The average of any two numbers is exactly halfway between them. Then the average of one of the original numbers and the first average is between those two. And the average between that same original number and the new average is exactly between them, and the average ... Hopefully you see the pattern emerging. NB: average = arithmetic mean
The answer is an odd number.