The arithmetic mean of 3 numbers is 30. If 1 is added to every observation, the new
mean would be:
(a) 33 (b) 31 (c) 39 (d) 90
please solve !!!
urgent
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Answered by
2
Answer:
The arithmetic mean of 3 numbers is 30. If 1 is added to every observation, the new
mean would be:
(a) 33 (b) 31 (c) 39 (d) 90
please solve !!!
urgent
Answered by
1
Answer:
(A) 33
Explanation:
10X3 = 30
if we add 1 to each observation then answer will be
(10+1)x3=11x3
therefore answer will be 33
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