Mathematics, 21.05.2020 03:58 Day1201

The mean length of 6 childrens' big finger is 8.3cm. The mean length of 5 adults' big finger is 17.7cm. What is the mean length (rounded to 2 DP) of these 11 people's big finger?

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The mean length of 6 childrens' big finger is 8.3cm. The mean length of 5 adults' big finger is 17.7...

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