question_answer

Find the median of the data \[a,\,\,ar,\,\,a{{r}^{2}},\_\_\_\_,a{{r}^{n}}\] where n is an odd number.

A)  \[\frac{a}{2}(1+r){{r}^{\frac{n+1}{2}}}\]                  

B)  \[\frac{a}{2}(1-r){{r}^{\frac{n+1}{2}}}\]

C)  \[\frac{a}{2}(1+r){{r}^{\frac{n-1}{2}}}\]        

D)  \[\frac{a}{2}(1-r){{r}^{\frac{n-1}{2}}}\]

E)  None of these