IUDUL LUI
value of x.
. If the mean of 25 observations is 27 and each observation is decreased
by 7, what will be the new mean?
[CBSE 2014]
Answers
Answered by
7
Answer:
New mean = 20
Step-by-step explanation:
Given mean of 25 observations (m) = 27
If each observation is decreased by 7 then new mean = m - 7
= 27 - 7
= 20
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Answered by
7
Answer:
.mean=27
observations=25
Total = 675
decrease = 7x25=175
new mean-675-175/25 = 20. Ans
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