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78 + 79 + 80 + 80 + 81 + 81 = 479

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Q: What is 78 plus 79 plus 80 plus 80 plus 81 plus 81?
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What is the mean of 78 79 80 80 81 81 81?

Assuming you mean the arithmetic mean, it is 80.


What is the variance in this problem 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78?

The variance of 73 72 67 74 78 84 79 71 76 76 79 81 75 80 78 76 78 = 16.8456


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The answer is 711. Simply add up all of the numbers arithmetically like you would for two plus two. To make sure the answer is correct, check your work using a calculator.


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What is 80 plus 1?

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What sums equal 80?

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What is 77 plus 81 plus 79 equal?

237


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