Mathematics, 05.01.2021 15:00 avaleasim

The mean length of 6 childrens' big finger is 9cm. The mean length of 4 adults' big finger is 9.7cm. What is the mean length (rounded to 2 DP) of these 10 people's big finger?

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The mean length of 6 childrens' big finger is 9cm. The mean length of 4 adults' big finger is 9.7cm....

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