the mean of eight number is 27.if one more number is included ,then the mean is 26. find the included number.
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Answered by
0
Answer:
27 + (-1) = 26
the added one in (-1)
Answered by
1
Step-by-step explanation:
The sum of 8 numbers with a mean of 27 will be
27x8=216
and the sum of 9 numbers with a mean of 26 will be
26x9=234
therefore the number added is
234–216=18.
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