Arithmetic mean of 35 values is 45 what will be the new mean if each of the 35 values is a increased by 7 be decreased by 60 multiplied by 5 / 5
Answers
-18 is the answer.
(35+7-60)×5/5
=-18
If each value increases by 7, then arithmetic mean is 52
If each value decreases by 6, then arithmetic mean is 39
If each value multiplied by 5, then arithmetic mean is 225
Solution:
Given that,
Arithmetic mean of 35 values is 45
Mean = 45
1) Each of the 35 values is increased by 7
If each value increases by 7, then arithmetic mean also increases by 7
New arithmetic mean = 45 + 7 = 52
2) Each of the 35 values decreased by 6
If each value decreases by 6, then arithmetic mean also decreases by 6
New arithmetic mean = 45 - 6 = 39
3) Each of the 35 values multiplied by 5
If each value multiplied by 5, then mean gets multiplied by 5
New arithmetic mean = 45 x 5 = 225
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