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777dan777 [17]
3 years ago
7

Find the mean of the set 17.2 18.3 14.9 16.8 15.3

Mathematics
1 answer:
Elena-2011 [213]3 years ago
6 0
To find the mean is to find the average, which means add all the data values together and divide by the number of data values. In this case, we add those values together and divide by 6, which equals 82.5/6= 13.75
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cho tứ giác ABCD. Gọi M,N,P,Q là trung điểm của các cạnh AB, CD, AD, BC. Chứng minh rằng vecto MP = vecto QN, vecto MQ = vecto P
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Từ (1) và (2) => vecto MP song song cùng chiều với vecto QN

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=> vecto MP = vecto QN

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