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When 10 is subtracted from each of the given observations, the mean is reduced by 60%. If 5 is added to all the given observations, the mean will be: |
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|
(a) |
25 |
(b) |
30 |
(c) |
32 |
(d) |
none of these |
|
When 10 is subtracted from each of the given observations, the mean is reduced by 60%. If 5 is added to all the given observations, the mean will be: |
|||||||
|
(a) |
25 |
(b) |
30 |
(c) |
32 |
(d) |
none of these |