ive numbers have a mean of 12. When one number is removed, the mean is 11.What is the value of the number removed?
1 answer:
Answer: 10
Explanation:
When the number removed, the mean change from 12 to 11, so we assume that the removed number, x, has related to the median.
To find the removed number x, we sat their average equal to 11.
(12 + x) /2 = 11
12 + x = 22
x = 10
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