1.35
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To find the mean 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 1.2, 1.3, 1.4, and 1.5 is 5.4. Since there are four numbers in the set, you divide 5.4 by 4 to get the mean, which is 1.35.
Oh, dude, like, the mean of those numbers is just the average. So, you add them all up (which gives you 5.4) and then divide by how many numbers there are (which is 4). So, the mean is 5.4 divided by 4, which is 1.35. Easy peasy lemon squeezy.
Well, darling, the mean of those numbers is 1.35. Just add 'em up and divide by how many there are. It's not rocket science, honey.
14
Mean = (15 + 12 + 16 + 13)/4 = 56/4 = 14
15*14*13*12 = 32,76015*14*13*12 = 32,76015*14*13*12 = 32,76015*14*13*12 = 32,760
mean average = sum of dataset / number of items in dataset = (14 + 18 + 13 + 15) / 4 = 60/4 = 15
They are 13, 14, 15, 16 and 17.