allyfontela
allyfontela
15-03-2017
Mathematics
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Аноним
Аноним
15-03-2017
To find the mean
Just add up all the numbers, then divide by how many numbers there are
.
7 sets of numbers
the sum of all numbers is 105
105
÷ 7 = 15
so the mean of the years is
15
Answer Link
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