To find the average of a set of numbers, you add up all the numbers and then divide by the total count of numbers. In this case, the sum of 65, 75, and 70 is 210. Since there are three numbers in the set, you divide 210 by 3 to get the average, which is 70.
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Well, darling, the average of 65, 75, and 70 is 70. No need for a calculator or a math degree to figure that one out. Just add 'em up and divide by 3. Easy peasy lemon squeezy.
To solve an average problem, add all of the numbers and divide by the total number of items you are averaging. So:
65 + 70 + 75 = 210 / 3 numbers = 70
The LCM is: 13,650
65, 70 and 75
The halfway point between 70 and 80 is (70 + 80) ÷ 2 = 75
Median of the set = arithmetic mean of 75 and 85 = 80
45, 50, 55, 60, 65, 70, 75