Mathematics, 12.05.2021 21:50, hannah2718

3 of 8 The mean length of 10 childrens' big finger is 6.8cm.
The mean length of 7 adults big finger is 12.8cm.
What is the mean length (rounded to 2 DP) of these 17 people's big finger?

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3 of 8 The mean length of 10 childrens' big finger is 6.8cm.
The mean length of 7 adults big f...