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Rzqust [24]
3 years ago
10

(urgent please help!!!!)in computing the mean of 8 numbers, a student mistakenly used 17 instead of 25 as one of the numbers and

obtained 20 as the mean. find the correct mean.
​
Mathematics
2 answers:
mamaluj [8]3 years ago
6 0
I believe the correct mean is 21!
ad-work [718]3 years ago
6 0

Answer: 21

Step-by-step explanation:

The student's mean of the 8 numbers is 20; the total of the numbers will be

8 x 20 = 160

If we take out the 17 the  total will be 160 - 17 = 143

If we then replace the 17 with 25 the total rises to 168.

168 divided by 8 = 21

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