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Mathematics, 10.05.2021 14:00 gabrielolivas59

The mean length of 5 childrens' big finger is 13.8cm. The mean length of 10 adults' big finger is 16.7cm.
What is the mean length (rounded to 2 DP) of these 15 people's big finger?

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The mean length of 5 childrens' big finger is 13.8cm. The mean length of 10 adults' big finger is...

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