52. The mean of
of a certain number of
observations is 35. What is the new value of
the mean if each observation is :
(i) increased by 7. (ii) decreased by 5(iii) multiplied by 2(iv) divided by 5(v) increased by 20%
(vi) decreased by 30%.
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52. The mean of
of a certain number of
observations is 35. What is the new value of
the mean if each observation is :
(i) increased by 7. (ii) decreased by 5(iii) multiplied by 2(iv) divided by 5(v) increased by 20%
(vi) decreased by 30%.
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