Mathematics, 10.06.2021 23:20 rusa25
The mean of a list of 9 numbers is 8.
When a 10th number is included in the list the mean is 7.8.
Find the value of this 10th number.
Answers: 2
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You know the right answer?
The mean of a list of 9 numbers is 8.
When a 10th number is included in the list the mean is 7.8.
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